The few human outfits he looks at don't fit and won't change. The clerk sighs. "I was afraid of this. Normal stuff isn't going to work anymore. It's going to be freak or animal, though if you follow the rules you can still take the costume off and be as you are now." He looks through the costumes and then goes to the back. When he returns, he is carrying several costumes.
"The first is a faun, one of the Greek mythological beings. Small, and half goat. But very well endowed and very capable. I also have a minotaur and a centaur, but I can't carry them. If you get stuck in any of those, you will end up somewhere they are normal."
"I have a bunch of animal costumes available that will fit, but I brought the gorilla suit out. Again, keep it on too long and you will end up in a zoo or natural habitat."
"Lastly, I think you might be able to get into another sports uniform. I have a pro-footballer outfit, a swimmer's speedo, and a Pro Wrestler's costume."