How do you get it on the seat? That takes some effort.

it spewed out of janice's mouth.

You know what they say:
Man who stands on toilet is high on pot.

With the amount of shit - of varying levels of solidity and viscosity - that pours out of every orifice of Austin, James, Gail, Jenna and Farah - I'm not even vaguely surprised that some of it has hyper natural powers of adherence.