My mind works this way

I'm taking a grantwriting class for the next few weeks, and we were going over some 'dos and don'ts' for writing in my most recent one. One of the things to avoid, our instructor told us, was the use of rhetorical questions.

I laughed out loud and, for no real reason, said 'Hey, who's the medieval barber here?'

Only the teacher and, oddly enough, the 24-year-old in my class got the reference.