When the one-eyed snaked attacked, the two friends forgot to check their footing. Jimbo lost an arm and a leg to a mine, and it looked like his buddy Frank was about to lose even more. One could argue that the odds where against them.
"Finally, some action!" Jimbo joyously exclaimed, trying to build a makeshift shelter using his own blown-off leg and hand as a crude tool. He had always been one tough son of a bitch.