i've got a shitload of scars on my right knee. the first one is the size of a cent, don't really remember where i got it from, only that it wouldn't have become a scar if i hadn't picked the crust of all the time. then i got three others from falling on a street. they all got dirt in them and since there was nobody aroud to help me, i took a small scissor, sat in the bathroom and picked out all the dirt. it was painful as hell, but they didn't get infected. the rest of the scars i don't remember anything about.