Yea, twice actually
1st: I broke my wrist opening Roller Blades. I was around 8. I was opening them and standing like they were closed, in 50cm away from the door. Of course I feel down and broke my wrist. I could be worse as it wouldn't be hard to hit doors with my head.
2nd: this is one of the most embarrassing moments in my life actually. I was trying to jump on the pavement with my bike. My bike just went straight and I fell down on small stones. Huh, it hurt! And the most embarrassing was that 4 people were chating near that place where I fell and they just couldn't stop laughing. At least I made someone's day, right?

That happened last year. Oh and of course, I was wearing my favourite trousers.