Yikes, poor Otis! The only bad poopy experience that I recall is Yoda waking us up like 5-6 times a NIGHT wanting to go poopy, but he couldn't! For three days too, after someone fed him some unauthorized meat at a party!
Yoda does sometimes throw up on the bed, but we've come to accept it as no big deal now. He usually manages to wake us up pretty good when he wants off the bed, thankfully!