Bunnies are generally timid, until they are socialized and know that life is mostly okay. Somewhere, in their genes, they always hold that they are prey. Have you read "Watership Down"?
Today, I loved the friendly rats, who move towards a flash, not away. Rats, who always have a good idea. Opportunistic.
Somehow, I like the idea of rats going to a grocery. With teeny tiny carts and teeny tiny Mastercards, that won't scan properly and always hold up the line.