I was lane splitting between two longg rows of cars (I'm in Ca.)
One decided to dart into a space in the left lane and cross over in front of me with no blinker at the last minute. I slammed on my brakes and moved left to avoid the a$$ hole and my left hand hit the side view mirror of a car going about 25 to 30 mph. Blew the mirror off the car and into pieces with my knuckles and fingers taking all the force. I was able to come to a safe stop and pull over.
The chick driving the car was cute and understanding. She said she actually saw the whole thing happen in her mirror! I still have darkish spots where my fingers were bruised to the bone. I was wearing Icon Stealth Gloves with hard knuckle and finger protection thank god.