“Mommy! The potty is trying to eat me!”
That would be handy if ever you have a python or rat coming up the pipe.
I dread to think what is inside it but will find out tomorrow - I have the toilet to replace, my son in law put a hammer through it while trying to fit a new seat.
Perhaps he thought he should nail it on.
What, you’ve never heard of water hammer before? 
Also useful for airplane bathrooms. You know… for the snakes.