i've had a few from racing motocross.... not sure if they are dumb or not.... well... yeah, they are.
once i was dicing with this guy for like three or four laps nonstop. he's pass me, i'd pass him back, he'd pass me back... it was great racing. but i was getting a little too aggressive and decided to try an uphill triple to put some space on him. i came up short and landed on the face of the third jump, not to mention i was front wheel high. so when the bike slapped down, it flung me off the front. i impaled my knee so hard that it was bleeding.. though it wasn't cut open!! the blood was literally punched through the skin by the force of the impact.
probably the stupidest would be when i was trying to show off for a girl when i was 16. we were playing some outdoor hoop and i dunked it and tried to hang on the rim like a badass. but i slipped off and landed on my elbow. i still have the scar from that one.
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