I found out why cats drink out of the toilet. My mother told me it's because it's cold in there. And I'm like, "How did my mother know that?"

In this stand-up joke, Wendy Liebman starts with a mundane observation about cats drinking from toilets, then pivots to the real punchline: her mother’s oddly specific certainty about the reason. The humor comes from the implied backstory—if the mother “knows” it’s colder in the toilet bowl, she must have personal experience drinking from one, or at least an uncomfortably intimate familiarity with it. Liebman’s deadpan, self-questioning tag (“How did my mother know that?”) turns a simple pet factoid into a comic insinuation about family secrets, embarrassment, and the unsettling ways parents can seem to know too much.