Today, when I stepped out of my car at the end of my lunch break and bid my husband (who was driving) and my baby boy (who was not driving) goodbye, I saw a colleague also returning from her lunch. I waved her over, because she’s mentioned wanting to meet my baby, and introduced her. Well, sort of. Does it count as an introduction if one of the parties sleeps through it?

On the return walk to our brick building, she asked, “Where did you go out to eat?”

“Oh, I’m coming from home,” I explained...