I need to roll and change my drawers, I just snissed myself

While walking the dog my wife paused to sniss, she sneezed and pissed so we had to get home to get her out of those wet clothes.

"achoo!
...
awww man, hold on, i just snissed myself."

I heard Bill sniss while he was in the bathroom and sure enough there was piss all over the toilet seat and the floor.

what

Scenario 1: Simon is snissing up the wall. Scenario 2: Simon is very snissed off.