Actually, it'* the fact that it was a break that got him. The flight response doesn't really work right with broken bones because it didn't evolve to handle them. Primitive man was pretty much screwed if he broke an arm or leg, and usually didn't survive very long after, so the right response never evolved.
Later, when rudimentary medicine came around, bone-setting made the "stay-in-one-place-and-scream-for-help" response more appropriate.

BTW, toasty, I TOLD YOU SO!!!
Even if it was a sprain, you should have gone to the ER immediately. Sprains can go bad, and cause degeneration in nearby bones. Not something you need to have happen.

on a positive note i get to take it nice and easy and relax at work for a couple months now i work too hard anyways and deserve a break.

That does suck. I fall off my bike all the time now that it'* nice out. I've never broken my wrist riding but i've broke a few fingers, fractured a rib, and fractured the flanges on my lumbar vertebrae. So, i probably feel some of your pain.
Now that i've started doin rails agian (had a baaaaaaaaaaaad fall last year) i'll probably end up breaking soemthing by the end of the summer.
oh well...