Answer:
To you, rude would I never be, Though I flag my tongue for all to see.
Small edible creature from the sea that is often served at restaurants.
Black and scary, small and hairy. In the night you hear it preach, Through its noisy high pitched screech.
It has 8 arms and lots of ink but can't write a word.
The ones in the sea are prickly, but the ones on the street might pickpocket you.
The sun bakes them, The hand breaks them, The foot treads on them, And the mouth tastes them. What are they?