We had natural childbirth. We had our baby on a bed of lettuce at the Sizzler.

This line is a piece of deliberately absurd, shock-tinged stand-up hyperbole: it fuses the earnest cultural language of “natural childbirth” with the banal, low-rent specificity of a chain restaurant (Sizzler) and the visual gag of a “bed of lettuce.” The humor comes from incongruity—treating a profound life event as if it were a salad-bar situation—and from the speaker’s deadpan escalation, which satirizes both lifestyle sanctimony and the way personal milestones can be commodified or performed. It also exemplifies Saget’s well-known contrast between wholesome public persona and raunchier comedic voice, using a jarring image to puncture sentimentality.