Why head lamps are a bad idea

Having lost/broken/taken apart for experimentation several conventional torches, I got a head torch (on the condition that I do not bring a screwdriver within 10m of it). I was ridiculously overexcited by this. A head torch! Wow! Hands-free working! Conveniently placed! Night vision mode! The torch does not live up to its hype. Firstly, although a head torch does allow for you to see what you ate looking at, it isn't very selective. For example, it is useful when looking for tent pegs, but when someone talks to you and you look up, it won't magically turn itself off. People tend to get annoyed when you shine torches directly into their eyes. Secondly, it really isn't that well placed. It keeps falling off my slightly small and oddly shaped head. Torches are less fun when they are trying to strangle you. Finally, the night vision mode is great... If you can get to it. The night vision mode is after three stages of bright night-vision-ruining white light. Someone really thought that one through -.- Basically, head torches are pretty useless, as far as I've used them. I would probably be better scrambling around in the darkness.