I had a honda 200 that I didn't take care of, and it slowly died. Motor just ran shittier and shittier until one day it wouldn't even start. After that I bought a kawasaki 150 from a friend for $50 clams. The first day I had it, I gunned it for all it was worth, popped the clutch, and the fuckin' thing took off from right under me, popped a wheelie, and flipped over backwards. That was the end of the taillight. Too many good times on that thing to recall. It all ended one day when I was going around the corner on the street, someone called my name, I looked backwards to see who it was, all the time I'm looking I was headed toward the curb. By the time I looked forward again the tires were parallel to the curb and I started tipping to the left. I tried to turn to the left so I wouldn't tip, the wheel got caught on the curb, and I tipped over just in time to run my face into a bush, at about 25mph.
Apperently the guys that called me later told me that they couldn't see what happened since a house obstructed their veiw, but they seen me go around the curb, disappear behind a house, and then they heard my bike go "wheeeeeeee!" real loud (I'm guessing after the bike tipped over and the wheels no longer touching the ground the engine rpms had nothing holding them back).
To make a long story longer, those dudes came running over to see what happened, and I was pretty dazed. They told me I'd better go to the hospital, I was like, "naww, I'm ok". They said, "No, you better go" all while looking at me with these "holy shit" looks on their faces.
I jumped on the bike, which was sputtering and popping now, and headed for the hospital. By the time I got there my shirt was all full of blood that dripped off my face and blew onto it from the wind. I get to the reception desk at the hospital, and the lady asks me "Do you need some help?"
I should've said, "Nah, I'm just here to visit someone". Anyway, 14 stitches later, I was back on my bike for what would turn out to be one of my last rides ever. Turns out the engine somehow got damaged, since it just sputtered and popped since the crash, like there was a blown head gasket or something. I tried getting it going, but it would just bog out everytime I tried to give it gas. So it just sat for about a year getting rusty, then I sold it to a junkyard for about $20.
I got my driver's license sometime after that and I've been in cages ever since.