What is the worst insult someone has ever said to you?
For me, it has happened twice. First time, one of my friends was being pretty selfish for the past year, only coming to hang out if certain people were there, only if someone drove him there so he could drink, making plans and bailing on them within a half hour of when they were supposed to happen. I called him out and he went on a rant about how he hoped that I would grow up to be someone of worth(in effect, calling me worthless). That hurt. It hurt more than when he passed over me for his wedding party(I was there when he and his wife met, I was his oldest friend, he told me we were best friends, etc, etc). He did apologize for the comment, but I know what he really thinks.
The second time, a friend of mine was drunk and called me worthless because I am an Atheist. He was drunk, but he never apologized and I have not forgotten.
Your turn!