Sorry for the rant my knee is killing me, never try to use your knee as landing gear at 30mph.
The funny thing is all the time i was sliding down the road all i could think off was ah crap this could be expensive, once i had stopped sliding my first thaught was quick go see if the bike is ok! i got the bike out of the way of trafic checked it over only then did i see if i still had the correct number of limbs and appendages, and it wasn't till i got to work and got off the bike i realised i may have done more than bugger up my jeans.