Nocturnal Emissions

As heard in the staffroom:

Teacher 1: I have a student who told me that he wakes up with just his underwear wet and his mom told him that he still wets the bed.

Teacher 2: Oh?

Teacher 1: Yeah but he says that the only thing that's wet is his underwear. Not his pajamas. Not the sheets. Just his underwear.

Teacher 2: Oh!

Teacher 1: So I told him that he's not wetting the bed, but that he's having what's called "nocturnal emissions" where his semen is being released because there is too much being produced. His mom was telling him that he's wetting the bed! I had to tell him the truth!

Is that appropriate?