One of them talked about a change in appetite.
"Are you pregnant?" the other asked.
"Heck, no," came the reply. My assumption at that point: They were clowning around. It did seem they kept the joke up a little long, but what the hey...
The one said soething like, "In another 20 years, when I'm too old to have kids..." Again I was a bit puzzled. I mean, can't men have kids at any age? But maybe he meant in another twenty years he'd be too old to raise kids...
It took me rather a long time to challenge my original assumption: that here were two men talking.