This requires a lot of explaining, so here it goes:
While minoring in psychology, I decided to see how good I was at reading people and manipulating them. So I proceeded to find and enter a group with the classic 'leader' whom the rest followed (nothing major like a cult, just a group of five 'friends' with the 'alpha male' they worshiped).
2 months later and I was finally ready to be rid of these morons and put my plan into play. So one day when he was feeling down, I played my hand and got him kicked out of his own group. With tears in his eyes he threatened to kill me and walked away with his head down. I imagined this wound was quite fatal to his pride as his friends (slaves more like) stabbed him in the back all at once. The look on his face was priceless hahahaha!!! I left the group shortly after (as I got what I wanted) and left the group crippled.
I later heard that he reclaimed it all back (except for his pride) a week or two after I left, surprised to see he could pull himself back together after such a blow (didn't think he had it in him... then again this isn't a novel. He can't get past it though, from what I hear from friends he hates me... a lot. Often threatens to kill me and my family too.
Actually made more friends than enemies doing this, believe it or not.