baron von trail 

oh, probably way over-stated it. It's not like I couldn't walk or needed surgery to repair a tear.

I basically pulled the big muscle in my left quad at age 32 or 3 and since then it never really loosened up again. I kept pulling it, over and over again, even after stretching, rehabbing, warming up, you-name-it (well, did it all except quit smoking cigs). I would pull it again today, btw, if I tried to rapidly accelerate, say up a flight of stairs, or tried too sprint in to high of a gear.

The only good thing is that I can feel usually feel it just before she's about to give, and can then lay-off before the real pain sets in. For my level of fitness and activity, this tightening of the quad still happens all too frequently (and, I don't even smoke anymore). It's definitely my weakest link ---- after the lungs started healing, that is.