Been lucky, no major crashes. First one was on my RD50 in 1974 looking where my buddy in front of me was going, hit a curb, broke my nose (did not know it at the time).
Second crash in 1979, applied too much front brakes on my 750 Suzuki on a wet road and the bike slid out under me. Not much damage to bike, none to myself.
Third crash (remember the no alcohol rule) in 1981 on my 1100 Suzie, had about 3 beers and my cousin on the back. He was drunker than I was and shouted "wheelie it". Flipped it over backwards. Gear lever went in my left leg on the inside, zipper of my boot broke off and was about 2 inches deep on the outside and had to be dug out. No bones broken, damage to bike was minimal, handle bars and a little scrape on the exhaust pipe. Amazing considering it flipped over backwards, but then, it fell on me instead of the road!
Fourth crash in 1986 (remember the no alcohol, even if you are sober avoid friends who are not) at a bachelors party, I did not drink at all, but got rear ended on my ZX10 by a drunk friend on the way to a stripjoint!
Total damage $1200, paid by drunk friend as he did not want to get insurance company involved.
Fifth and most serious crash was in 2001, when an illegal alien with no driver's license, no insurance and suspended tags in a big pickup truck skipped a stop sign right in front of me. I had a choice, hit him or do a controlled crash. I yanked the bike as hard as I could, and slid down the road a good 30 yards. It was in Phoenix in September, and I was only wearing a cotton shirt, had some serious road rash on my arms, but once again, no bones broken. None of the other crashes ever made me think twice about getting back on a bike, but I had a close shave just a week before, and I decided to stop commuting on my bike to work. It did make me a little gunshy, as I had almost 15 years between that and my last accident and thought I was experienced enough. I still ride for pleasure, and just bought an LT, so we will see how it goes.