I was still laughing over the 'burned forehead from falling on the heated towel rail whilst putting knickers on in the bathroom', when I saw the one about trapping the dog's ear in the boot door; now I'm crying laughing.
My best are:
* My best friend, when I was three, and I were racing each other down our street, me on my tricycle and he on his go-cart. He (typical bloke!) cut me up and I had to turn into my drive at high speed. Tricycles don't turn well at fast speeds, and I went straight into the fence, which was one of those ones with sharp stones. Knocked myself out and had to have 15 stitches in my cheek.
* When I was about 9, my best friend and I were playing football and I got shouted in. It was my ball, so I picked it up, at the same time as he kicked it. Cue broken finger, although I only realised the next morning. I got all excited thinking I was going to have a cast, only for them to strap it to the next finger. Grrrr...
* Whilst swinging my sister around the kitchen as we were both attached to opposite ends of a scarf, she slipped and hit the fridge, knocking out three of her front teeth. They were baby teeth but weren't quite ready to fall out. We had the chips in the fridge paint until we got rid of the fridge. Hehe...
* I was walking along a path, aged about 5 or so (it was safe in those days), and 3 older boys came the other way holding a glass bottle of milk. They said they'd throw it at me, I said go ahead, so they did, and it smashed at my feet. I ran back towards my Nan's house, and realised there was milk in my Mr. Man shoes. Until I looked down and saw it was blood. Eek. And my sis wouldn't take off her sock for my Mum to wrap it round my foot, probably payback for the tooth incident 
* When my Mum dropped me off at Brownies one night, I stepped out of the car and she drove over my foot. I screamed to her that she'd done it, so she reversed and drove over it again. Hehe...
* I fell off my mountain bike on one of my first rides up in the Lakes and dived head-first into a pile of rocks, scratches everywhere. I bought a helmet the very next day.
* And I've knocked myslef out playing squash. I've also parachuted into a field of sheep which was quite funny; I landed whilst screaming, 'Move sheep, move!'.