It shouldn't surprise anyone that a lot of swearing goes on during a wax service. Some of the sweetest, most conservative women can swear like truck drivers. Women even swear in other languages. That always makes me laugh. Many women apologize because they get embarrassed when they scream obscenities, but I always try to reassure them that it is very common and doesn't bother me at all. I even read a blurb in a magazine that said swearing can help you cope with pain better. So swear away, my virgin ears can take it.
And, for the record, fuck is the number one swear word that I hear when I wax someone.