"Oh no! Help! I'm trapped in quicksand! I'm about to drown!"
"Actually, quicksand is just sand, but it's just a bit runnier."
"Oh hey, I didn't know that. That's pretty cool. Gurgle"
Diarrhea. Specifically, the gut wrenching stomach twisting kind of diarrhea that results from an over-indulgence of green apples or food poisoning. It's characterized by arapid and often unexpected onset.