I'll tell you what surprised and even scared me in a barbershop in Turkey: at the end of the haircut, the hairdresser for some reason lit a cotton wool with alcohol on a stick, then brought it to my ear and blew into it with a torch.
The smell of burnt hair appeared.
Then he walked around me and blew into my left ear in the same way.
Thus, he quickly and efficiently performed a rather troublesome procedure for cutting hair ON and In the ear.
I was surprised and grateful at the same time.