Behold, the phantom menace:
Pete, the tapeworm.
Discreetly disguised as a fluffy glutton of a cat
but he's not fooling anybody, anymore. His behavior betrays him.
1. Lives for food
2. Un-catlike, clumsy behavior; generally unversed in cat etiquette, suggesting that the alleged "cat" is, in actuality, not familiar with normal cat behaviors (examples: tail wags like dog when petted, never lands on feet)
3. Tongue looks like a tapeworm (vacant stare reinforces cat-suit hypothesis)
Cleverly done, tapeworm, cleverly done.