According to this story:

Man’s arm bitten off by gator in South Carolina

The man stumbled onto a group of picnickers with his arm missing and his wound gushing blood. Luckily there were 5 nurses among them who put his wound on ice and kept him awake until help arrived. He’s currently in critical condition at the Medical University at South Carolina.

Kudos to the nurses who helped out. I really don’t know if I would have been able to hold it together after seeing a man gushing blood out of the spot where his arm used to be. (Then again, I don’t do trauma nursing.) The amazing thing is that he actually stumbled upon the picnic site.