I have a driving tip for you: Never hit the lead car in a funeral. I have never seen that many people in that bad a mood.

Phyllis Diller’s line belongs to her stand-up persona built around domestic mishaps, social faux pas, and observational one-liners delivered as “tips” or mock advice. The joke draws on mid-20th-century American driving culture—when funeral processions were common, highly visible, and governed by strong etiquette (yielding right-of-way, staying in line, and showing respect). By framing it as a practical “driving tip,” Diller sets up an expectation of ordinary safety advice, then pivots to the taboo scenario of colliding with the lead car of a funeral procession, exploiting the heightened solemnity and communal emotion surrounding funerals for comic shock.

Delivered in Phyllis Diller’s trademark one-liner style, the joke turns a piece of “practical advice” into a darkly comic observation about social ritual. A funeral procession is supposed to be solemn and orderly; by imagining the worst possible driving mistake—rear-ending the lead car—Diller highlights how grief and etiquette amplify ordinary irritations into collective outrage. The humor comes from incongruity (traffic mishap vs. mourning ceremony) and from her persona as a blunt, mischievous commentator on everyday life. The line also reflects mid‑century stand-up’s fondness for taboo-adjacent topics handled through quick, disarming punchlines.