This just goes to show that you can do everything right and still end up hurt. You just never know what is going to happen around you. It is unfortunate but it is the risk you take everytime riding a motorcycle.
I was coming home from Rockford this last weekend when we came up on some pretty slow traffic (this area never gets backed up so I knew something was up) It turned out a couple of motorcycles were involved in a crash, one guy got it worse, his bike was on its side all torn up. We got there just as the paramedics arrived on the scene, as I passed the crash I saw some plain clothed guy giving the rider chest compressions (it didn't look good for him) there were few cars that have already pulled over and were trying to help before the paramedics got there. Not sure what happened to the guy but I hope he made it. From the looks of it (tire marks and debree) it looked like the middle of the tire came off from a semi-truck trailer and this poor guy must have hit it straight on, which probably locked his front wheel up and he went down hard. I doubt the semi-truck even knew he blew a tire.
I hit one of those in a car before, it happened so fast I didn't even have time to react. Tire pieces broke my headlight and the truck didn't even slow down (probably didn't even feel it)
Personally, I've never been down on a motorcycle (knocks on wood) but just seeing that makes you think that it could be you just as easily, you just never know.