Thread: A Barber Joke from Ancient Rome

I found this in a recent review of Laughter in Ancient Rome by Mary Beard, in the LRB:

"A student philosopher, a bald man and a barber on a journey together stop for the night, taking turns to guard the luggage. First turn goes to the barber, who passes the time by shaving the head of the student. It’s the student’s turn next. On being woken he rubs his head and finds himself hairless: ‘What an idiot the barber is,’ he said, ‘he has woken up the bald man instead of me.' "

More logical words have seldom been spoken!