Cleanliness
Beards have been back for a while, starting off in the hipster camp and then making their way slowly but surely into the mainstream. That’s fine, some people love a good beard, but there’s a lot of maintenance involved, and you have to wash it as much as you do your hair.
This client obviously didn’t get the memo, and he wasn’t into washing the rest of himself, either. Fair enough, tell your stylist that you only get your hair cut twice a year, but maybe you should make the effort to wash it (and the rest of you) before you go to your appointment.