I was helping a friend build a metal shed. Two of the metal side panels were stuck and my friend started hitting them with a hammer to get them apart. Well, one came flying off, hit right above my watch and sliced into my arm like a razor blade. Blood everywhere, looked like a crime scene. Oddly, I never passed out or felt light headed but gawd that was a lot of blood. I asked my friend to take me to the ER but his wife called an ambulance. I was on a rolling gurney when we got to the hospital. I told the guys I could walk fine, but they said to stay put and I'll get seen faster. A lot of stitches, a shot, and a big co-pay bill and I was sent home. I'm never building another metal shed.