Why you can't learn stage management from a textbook

Over headset, after hearing a loud crash sound backstage while I was calling the show:

Me: What was that?

ASM: I think [one of the run crew] ran into a couple milk crates, sorry.

Me: Is he okay?

ASM: Yes.

Me: Was he wearing clothes?

ASM: Actually, yes.

.....Some questions you can only learn from experience to ask....