[by a van door] was standing at the back of the van, bending over putting my shoe back on, when the door decided to slam shut, right onto my head. Knocked me flat on my ass, don't think it actually knocked me out but nice golf ball on the side/top of my head and a minor concussion to boot. I guess I'm not going to the gym tonight. The last time that fucking door swung shut, the inside handle smashed me in the ribs. Stupid van.