You both freeze in expectation, but it's pretty obvious that nothing happened - no beam of light, no transformation, you just feel goofy.
Dave is the first to pipe up. "Well, that was a fat load of nothing, maybe try again?"
You do so, trying a few more times, alternating both hands, trying both at once, and even while trying to concentrate on shooting out a transformation ray, which only causes Dave to laugh at the face you're making.
In his own words, "You look like you have to take a dump!"
You pause, but he encourages you to go on, so you try a few more things you can think of, from classic stage magician gestures to throwing invisible energy balls, and it's only once you're done going through the whole Anime "charging and firing a beam with your cupped hands" motion - with the requisite amount of screaming, of course - that you notice he's pulled out his phone and started filming you at some point.
You step closer and bare your fangs. "Don't ever post that online, yeah?"
He nods rapidly and puts away his phone in record speed.
The awkward silence that follows is broken before too long by Roy finally finishing his notes and he quickly starts to rant again: "Fascinating, simply fascinating - I believe that's a confirmation on you absorbing and storing the energy you've been exposed to, and judging from the racket of the last minute, you have problems replicating the phenomenon?"
You nod, and he continues. "Very interesting - maybe you've run out of energy, do you feel any different compared to before? Nothing noticeable? Hm, this needs further testing then, but not right now - I'd need a more robust testing environment anyways."
He starts scribbling away at his notebook for a a bit, then rips a page out and hands it to you. "Here you go, please fill out those questions during the day, and bring it back tomorrow."
The newly-minted mouse turns to leave, but he seems to have caught your confused expression and pauses. "I skipped over something again, didn't I?"
Dave snorts behind you as you answer: "Yeah? We kinda were discussing your findings before I accidentally zapped you?"
"Right, right - well, I'd have to look at the sensor data to see what exactly happened - they're definitely still functional, despite looking markedly different, although I might want a second set to compare against... Anyway, you left the premises for a bit afterward, correct? Judging by the readings - and the obvious alterations to your apparel - you still encountered sources of transformation, could you recount your experiences outside?"
You do so, noting both your enhanced sense of smell, and how your impromptu performance got easier the more you danced.
While both your listeners flinched at you re-enacting the mutilation of your last sausage, Roy also offhandedly mentions that transformation and shapeshifting seem to be a running theme for this carnival in particular - apparently even for some of the food stands, although not the one you chose.
Interestingly enough, Dave has something to add to your story: "That musician guy has been doing this exact stuff for years now - grab someone random to dance to his tunes, and then either turn them into something to amuse the audience, or directly mess with them as well. Heck, he turned me into a snake once, back when he was doing a snake charmer routine instead of the Pied Piper stuff he pulled this time around. No worries though, usually the people get an offer to turn back at the end of the day, although he seems to be good at finding people that want to stick around a bit longer."
"Yes, and interestingly enough, he actually tried to turn you first - the sensor readings even indicated as much - but he failed to do so, even though he uses an entirely different delivery vector for his transformation than our guns. However, since he clearly managed to affect your clothes and sensors, this gives me an idea - one moment, please!"
Roy grabs the oversized gun he last tinkered with and starts working on it again.
It doesn't take him too long before he declares his modifications complete - obviously going for looks, or even proper cable management wasn't a priority this time though.
"Alright, now go stand over there," he motions at a relatively uncluttered spot on his side of the table, "And disrobe as much as possible - feel free to turn whichever way is comfortable, no need to get embarrassed!"
You weren't embarrassed before he mentioned it, as you got pretty used to running around in what's basically an oversized, sparkling set of lingerie, but now that you're suddenly reminded of your lack of proper clothes, your shame makes a return.
You still do as he says though, opting to turn sideways, away from Dave, but still able to see Roy decently well, if you turn your head.
"Alright, now hold still - here we go!"
Roy aims the gun at you and pulls the trigger, causing it to erupt in sparks while it fires a larger-than-usual beam at you. You don't feel any tingling sensation though, but as you look at yourself, you notice you're suddenly wearing a T-Shirt and pants on top of your jewelry!
They don't look like anything to write home about, but they fit your oversized curves almost perfectly, don't seem to irritate your fur - not that your bra ever did - and there's even a hole for your tail to fit through.
Just as a test, you try to take them off, but while the pants are quickly removed, your T-Shirt's slim waist just doesn't fit past your oversized tits, and you won't be able to fit the rest of your body through the neckline either, so those can only be cut off.
The researcher seems very excited about all of this though: "Fantastic! As I thought, your energy absorption only applies to effects that would affect you, and not your clothes, or anything else around you! Now, you still have my questionnaire, yes?"
You nod.
"Great, I don't think I can test anything else with this setup - I'll have to ask you to come back tomorrow for more extensive testing, and please answer as many of the questions as you can too. As an incentive, I'll try my best to get a more ...end-user-friendly version of this clothing gun ready for you by tomorrow as well, so if it turns out we can't turn you back at all, you at least won't have any wardrobe issues - speaking of, hold still for a second!"
He zaps another set of pants onto you, takes the first set, along with your discarded bra and panties, and dumps both them and the gun into a box labeled "research material" before turning to Dave, who groans at what the mouse has to say: "Alright, we have lots of things to do, let's get things started!"
They don't seem to be noticing you any more, so you grab the sheet of paper you've been handed, as well as your personal belongings, and leave.