Ned: What a great pot party!
Maude: Wasn't it, man?
Ned: Now for a regular cigarette to make the night complete.
[lights one, takes a drag, and coughs] Oh, man that's good.
Maude: Mad Dog, I've been thinking. Maybe we should get another smoke detector in case that one trips out on us.
Ned: [laughs] Why bother, baby. One smoke detector's enough for Mad Dog. Now let's hit the sack.
[they both lie down in bed. In short order, Ned -- er-- Mad Dog's cigarette sets his pants aflame]
Whoa, check it out! Mad Dog's on fire!
Maude: Stop, drop, and roll, man!
Ned: Ha, ha, ha, that's for clydes, baby. A little fire can't hurt you.