I very seldom take an instant dislike to someone but when I do it ALWAYS transpires that there is a good reason to avoid them When I was younger, I used to try very hard to overcome the feeling, searching hard for something likeable about the person, but I have learned to trust my instinct and now just avoid such people. Trying to narrow down what causes the feeling I think it is a 'falseness' about them, a mismatch between how they are presenting themselves and what their eyes and body language are saying. I have the same feeling about a few 'personalites' who give me the creeps. Gary Glitter was one of them and Jimmy Saville another. I will not name the others on my list who have yet to be exposed but will not be the least bit surprised when they are outed as a 'rank bad yin'. I would bet that many of us have immediately suspected the apparently heartbroken relatives in some of the child abuse/murder/abduction cases over recent years, did not want to prejudge, but eventually found that the gut reaction was the right one - and that is just seeing them on the TV.