I have a few chihuahuas, the youngest was born blind, double jointed, and broken tail. She regained sight after getting older, she feels no pain on her tail and she has 0 joint pain.
When she feels lazy and doesn't want to walk, she pops her rear legs and lays there until left alone. She basically forces me to carry her and pops them back in when I have her in my arms.

My cat doesn't do smart

Successfully eat.

My cat can play fetch, comes when called, jumps down from furniture when told, and I recently taught him to jump into my arms when I tap my shoulder

My dog is 18, blind, deaf, has back problems, has almost 0 muscle, and we have to put him in a little fenced in area at night to keep him from peeing everywhere, but hes figured out how to push the fence with his nose so he can escape at night

Gets the zoomies at 4 a.m. so I’m unable to sleep.

I used to play a game with my dog where I would put a ball under some objects and show how to remove the objects to get the ball, she was real good at figuring it out. Then I bragged to my cousin that she was a really smart dog and right then and there she ran headfirst into a wall.

My friends dog outsmarts all puzzles she gives him. There was a ball that you stick treats inside. He rolled it to the wall and tapped it until all he food cane out

Another puzzle he tipped upside down so all the food would come out.

My cat learned how to open the sliding door hall closet so he can snuggle up with our shoes....I didn't know cats loved shoes, I always thought that was a dog-thing.

Smart is not in my pet's vocabulary

Sit straight up like a person at the table (and stay like that for as long as he wants)