Answer:
Those with eyes bigger than their stomach will definitely leave the restaurant with one of them. It is named after a house pet as well.
Long slim and slender. Dark as homemade thunder. Keen eyes and peaked nose. Scares the Devil wherever it goes.
For our ambrosia we were blessed, By Jupiter, with a sting of death. Though our might, to some is jest, We have quelled the dragon's breath. Who are we?
The ones in the sea are prickly, but the ones on the street might pickpocket you.
A horrid monster hides from the day, with many legs and many eyes. With silver chains it catches prey. And eats it all before it dies. Yet in every cottage does it stay. And every castle beneath the sky.