Shower

P1
JIMMY: What's wrong, Trey?
TREY: My roommate died.

P2
JIMMY: Oh my God! The engineering major?
TREY: Yep, found him shriveled up in the shower.

P3
JIMMY: What happened?
TREY: He read the shampoo bottle for the first time. It told him to lather, rinse, and repeat.