Only one. I was in Colorado on vacation, and I'm hanging at the pool. I decide to jump in, and I "accidently" jump onto this kid who had been dunking me all day. He's like "What's your problem!!?!?" I sort of shrug it off and start walking toward the hot tub. He comes up and hits me right in the kidney. I'm sort of stunned, but then I turn around, I punched him in the sternum several times, nicked his head cuz he ducked, and then tackled him. He then proceeds to choke me when I go away to the hot tub again, so after a few hits from him to me in the face, I punch him so many times in the face. His face was purple, mine not much better. By this time a few other guys I'm hanging with come up and break it up. My back hurt for a little, and face hurt for a day, but it was somewhat fun. Kid outweighed me by about 100 pounds, but then again I only way 140.