Toggles:
"Nothing beats when one of the characters has her head (a scratch and-sniff moment is indicated on the screen) in the oven, ostensibly to gas herself to death (Oh the mello-drama!) uhm, it's an electric oven."
Actually, Waters seems to have stolen that moment from the 1963 film version of Bye Bye Birdie. Maureen Stapleton does the same thing in that movie. It's a funny moment, though, in either film.