For some reason, the topic of babies came up at lunch. Actually, it was more about women being pregnant than actual talk about babies. I have no idea how the topic started, but I did witness the following exchange.
Guy 1: It doesn’t matter what trimester they’re in, you always have to be careful.
Guy 2: Really? Huh. So, how many trimesters do they have?
Guy 1: ……
Guy 2: Oh, right, [laughs out loud]…trimesters. So it’s like quarterly, right?