Me (stretching after a workout): "Hey buddy, want to stretch with me?"
Sippy Cup: "Sure!"
Me: "Ok, just do what I do."
Sippy Cup: "Ok."
Me (squatting down to stretch my quadricep muscles): "Ok, just make sure you do it slowly so that you don't hurt yourself."
Sippy Cup (squatting down slowly): "Oh crap. I gotta poop!"
Sippy Cup (running down the hall): "Ha ha! Stretching makes me poop!"