[QUOTE=floatinghead;1548983]I tried a nose pinch the other day and it DIDN'T work!! I thought I was dreaming, so I pinched my nose, found I couldn't breath and so assumed that I must be awake (which is weird because I've done the nose pinch before in a dream and it worked - I could breath through it)[/QUOTE
technically it doesnt have to work every time, because just like you are breathing in real life no matter what you do in your dream, senses in real life and in a dream are separate, so you may not be able to breathe in the dream but still be dreaming in real life (were you a zombie when you woke up? Or all purple?XD)