Ok, to be specific the term injury is basically a broad subject. A cut, a bruise, and sprain, anything. They don't have to have been painful, just weird and abnormal.
For me, I had a cut on the sole of my foot, unsure how it got there but it was relatively small. No blood or anything, but it hurt like hell when I walked like a needle was jammed in it, so that small of an area. I finally looked at it after a while and to my surprise, a strand of hair was sticking out of the small cut, almost like it was wedged in perfectly. I have no clue how that happened.
For me, I had a cut on the sole of my foot, unsure how it got there but it was relatively small. No blood or anything, but it hurt like hell when I walked like a needle was jammed in it, so that small of an area. I finally looked at it after a while and to my surprise, a strand of hair was sticking out of the small cut, almost like it was wedged in perfectly. I have no clue how that happened.