I have a few
When I was five, me and my friends would jump off a picnic table in my backyard pretending we were famous divers, so we would do all these crazy moves and stuff. One time I went to the very edge because I wanted to do a really cool move, but I sort of stopped mid jump and landed one one of my arms (idrk how it happened) and it broke in two places. All I remember after that was me screaming my head off, my friends running away (they were my neighbors) and them peering over their fence.
FAIL
I was six or seven, and me, my brothers, aunt, uncle, and cousin were at this kind of river place, and there was a big rock that you could jump over and land in water (the place was full of people). At the bottom there was a seperate kind of kiddy-jump, and on the way there (I don't really remember it that clearly) there was a pole sticking out of one of the rocks so you had to duck to get under it, but I forgot, and smashed my head off it and fell into the water, so my uncle had to get me out. The second time my aunt said "watch out for the pole this time", but I smashed my head yet again and fell into the water. The third time she actually came behind me and when I got to the pole she said "Now duck." but I smashed into the pole and fell in the water.
(that was written badly sorry)
FAIL.
I had a school trip to a waterpark, and while I was in the wavepool the strings to my bathing suit top came off and I didn't notice.
FAIL
About a year ago at school, I was sort of enemies with this girl Nicole. One time me + her were arguing or whatever, at the top of the stairs, and I told her off really well. But when I was walking down the stairs all proud I tripped over my own foot and dropped all the books I was carrying, my pop which exploded all over me, and banged my funny bone against the floor which made me go "AAGHGH" in this really retarded way. And yes, she was still standing at the top. With all her friends. Watching.
FAIL