Originally posted by GunsForBucks:

I think that would cause more problems for people getting trapped places.

^This .... add climbing skill, and then maybe. But run + jump is (should be) standard in any game.

Otherwise, what's the actual issue you're having? Launching yourself into space and then landing with a death? Better HP food should help in most situations. Not sure if jump skill lessens any fall (distance based) damage though, but I hope it does.