Do the pubes next!

I saw something like that in a movie long ago, shaving the face with a knife, not the pubes thing though now that I think about it...
I also saw the burning off the hair trick in a movie too. I have no idea if it might work, seems doable though. The guy took a smoldering stick and singed the hair off. I imagine it's an acquired skill but if enough friends and relatives died you'd eventually get the hang of it.