Quickly realizing you won't fit out the window, you open the cabinet and grab a syringe marked "wolf". You inject yourself just as the guards come round the corner.
Fur quickly spreads all over your body, your hands and feet turn to clawed and padded paws, your face extends into a wolf muzzle and other changes occur.
However, you still remain anthromorphic with plantgrade feet and a huge pot belly. You have also gained pudgy hamster-like cheeks and a few chins. Your arms and legs are also thicker.
"You fool!" says one of the scientists "You were too big and fat for the serum to work properly! What do we do with you now? Nobody wants to see a grossly obese werewolf!"