My dog likes to get high, He knows what I mean when I ask him "Wanna get high?" he'll spin around in circles, stand up and dance. I never force him, whenever he smells me smokin he percs up and starts beggin. I never shotgun him though, just give him a little cloud here and there. He's small and doesn't need much.
When I was a teen ager I got my sisters cat high for fun. After that one time whenever I toked up in my room I'd hear the door rattling. I'd look over at the door and sure enough theres a cat arm clawing under the door flailing madly. I'd let her in and when I sit back down she jumps on me and gets right in my face purring like mad with a look in her eyes that just said "kick down some buzz big boy!" She was a cool cat. Miss her alot.