Well the thing was Clare and Mark were both 4rth year Veterinary College students and in a month they were supposed to be doing the
exams that got them certified as practising veterinarians.
So being a anthro dragoness that couldn't hold a scapel and other vet tools in those taloned
3 fingered 1 thumb taloned digits was not a good thing.
Mary needed to turn back into Mark in a hurry.
So she went through the box of vials and was horrified none of them
had a image that could be interpreted as
<Male Human Young Adult>
There was however a vial whoses main label had fallen off but whose
secondary label clearly pictured
<NOT Anthro Dragoness>
Hoping that was a reversion vial,Mary slugged down the entire contents of the vial
rather then just a few drops as normally was done