I have NEVER heard a verified story of someone unarmed defeating a man with a gun.
You obviously have never heard of the Bullet Proof Monk.
[edit]That's not all. There are some self help books out there that teach you all about positive thinking and happy thoughts. IMHO with the aid of these books you can find, as some have said on this forum, unlimited funding, become Bullet Proof, Become sword proof, gain infinite inner peace and acheve Aurora borealis in your kitchen.
http://www.youtube.com/watch?v=zM9y-AoIF7Q