Anyone had injuries from the recoil of the 500 S&W? Other than the YouTube gun to the head stuff...

I've heard 2 second hand stories and want to know if these are possible/probable. First one sounded plausible... firing with 330 grain ammo cause "lightening up the arm" feeling and cause some discomfort for the rest of the day. The second story was the very same gun and ammo being fired one handed which gave the shooter a "broken wrist".

Does this stuff really happen?