Most recently was probably managing to knock myself out - tried to get a spider off my nan's hallway ceiling (she hates the critters) by using a glass and paper. When I thought I had it, I pulled the glass down and the little beggar fell straight for my face - instant reflex action to throw my head forward to get it out of my hair - SMACK. My face was only 4 inches from the wall in the first place. Woke up about 5 minutes later with my mum half laughing with a camera and half trying to wake me up, nan on the phone to the emergency services haha.
When I was younger it was discovered that I was allergic to penicillin the hard way - ended up being quarantined in hospital for a while. Basically was given some medicine for some sort of ailment (forget which now), which contained penicillin. Took the tablet, and pretty much instantly I was choking / gasping for air. Mum thought I had choked on the tablet and it was stuck in my throat, but I really couldn't breathe. Luckily we lived (at the time) 200m from a doctors surgery, so she rushed me over there and a doctor done the old "movie trick" where they cut a slit in your throat and insert a tube to help you breathe - still wasn't helping much. Ended up in hospital after about 20 minutes of trying to clear my airway, by which point I was rather blue so I'm told.
When I got there, had these big "wheels" appearing all over my chest (part of the reaction to the penicillin) and the folks there thought it was meningitis - cue spending the next 5 nights completely alone and quarantined in a hospital ward.
Have numerous funny incidents, although not really life-threatening; like thinking it would be "fun" to roll down the stairs, cracked my head on the banister at the bottom, got up, blood pouring down my face, laughing hysterically.
Big painful one was falling out of a tree onto one of those old trampolines with the handles? Snapped my arm clean over the metal handle-bar - pain was completely
Haha ben I remember you telling me about the arm thing, didnt your aunt try to fix up a splint, ended up doing more damage?
Oh and I can remember year 9 biology, you had to leave the room because we were using penicillin.
And who could forget the time when you somehow randomly managed to do some bad damage to your arm while driving me and Cat home
As for me, when I was young I had one of those huge train set things, the proper hornby stuff
My dad built me a huge set in the loft, absolutely epic stuff. Only problem is, we used to go up through the loft hatch in my room, leaving the one on the landing closed. The very thin sheet of wood that it was.
I'm one end of the loft, dad is the other, I run over to him.
Cue me waking up 5 mins later on the landing floor with my mum sobbing hysterically on the phone to the ambulance. Apparently I went right through without my dad realising, landed flat on my back and knocked myself out. 1 hospital trip and some cookies later I was absolutely fine
Electricity doesn't blow you away like on Jurassic park 
