I would suggest giving this guy a great honoring that he won't forget. We could always start by admonishing him but as they say "mitzva lo lehagid et hadavar shelo nishma"...

In this day and age, we should look to any advice regarding etiquitte and honoring others that we can find.

There are Islamic poslim that are cholek on this shitta, such as the husband in Afghanistan who sliced off his wife's ears and nose for running away. IThis guy's pretty machmir.