Thomas is a big boy! He weighs around 18lbs and stands around 14" at the shoulders. He simply stands up on his hind legs, works his head under the lid, and pushes it back up against the toilet tank. Then he has his drink (and doesn't put the lid back down).
When I clean the toilet, I have to close the bathroom door until I've gotten all the cleaner thoroughly flushed out of the bowl so its safe for Thomas.
(He's so tall that he stands on his hind legs and leans into the toilet bowl to drink.
