" If you can try to nap where someone's sitting,
Although there is another empty chair,
Then rub against his ankle without quitting
Until he rises from your favorite lair;
If you can whine and whimper by a portal
Until the bolted door is opened wide,
Then howl as if you've got a wound that's mortal
Until he comes and lets you back inside;

If you can give a guest a nasty spiking,
But purr when you are petted by a thief;
If you can find the food not to your liking
Because they put some cheese in with the beef;
If you can leave no proffered hand unbitten,
And pay no heed to any rule or ban,
then all will say you are a Cat, my kitten.
And -- which is more -- you'll make a fool of Man! "

― Henry N. Beard , Poetry for Cats: The Definitive Anthology of Distinguished Feline Verse