it's the fact they dare to wear the mask out the outside, instead of normal society and their whole invisable mask thing, that and anyone who has to disguise their identity while around children just sets off warning bells.. and the smile, or even worse the frown, i mean who the hell goes to all the trouble to put on clown makeup, and paints on a frown, in some transparent attempt to elict pity and compell us to take them under our wing.. all the better to shiv us aahhh buggrit