In Spelunky, if you bring a Damsel to the end of a level, you'll gain a hit point when you finish the level. Unfortunately, Damsels live up to their Hollywood stereotype: the only thing they're good for is running around randomly, and you have to pick them up and carry them over your shoulder to the level's exit. This means your hands will be full when you run into monsters, which is a bit awkward.
I am a horrible person: I've realized that the Damsel makes a reasonable weapon when thrown, and she can also be used to set off arrow traps. Sometimes I end up with a dead Damsel, and sometimes I don't.
What will damage a Damsel, and by how much? (Consider traps, hitting monsters with the Damsel, dropping her and a monster touches her, accidental whipping, long falls, etc.) How much damage can a Damsel take? Is all fair in spelunking and Damsels, or will I come to regret treating a Damsel like a bunch of pixels?