its not always that simple mrs c, some people just have bodily tics rather than shout obscenities, his GP would be his best bet if he wants to get referred for assessment.
Sure I don't have Tourettes, but some people think that I have! Last year, in a crowded local garden centre, I was being seriously bothered by a wasp (I have a serious fear of these nasty things) at one stage I was waving my hands in the air and yelled (Fxxx Oxx) very loudly, to the horror of an elderly group of ladies! Never felt so embarrassed! The wasp DID "FO" and now I always laugh when I am in the same spot.......so am probably considered mental!