What the hell is your problem?

Sometimes, I ride my bike to work. Four familial members, one car, I don't always get to use it. So today, I'm riding through the lovely Tower Grove Park when I am approached by five or six girls who are also on their bikes. As I pass, one of them smiles a goofy smile. "She's cute," I think. Then, from one of their mouths I hear the word "Bitch" directed at me. Following the expletive, I feel a sharp pain on my left ring finger and then hear whatever they have just thrown at me hit the ground. I take a quick look to make sure I will not run into anything, then turn my head, and scream, "What the hell is your problem?" They laugh and shout more crap at me, which I do not comprehend. Then, I feel bad that I yelled. It didn't help anything, it only fueled my anger and made them taunt me even more. I do not like to think of myself as a violent person. I am just glad they didn't turn their bikes around and follow me. Because I was already completely out of breath.....