1) The .44 Magnum in 'Dirty Harry'
"Being as this is a .44 Magnum, the most powerful handgun in the world, and would blow your head clean off, you've got to ask yourself a question: Do I feel lucky? Well, do ya, punk?"
Clint Eastwood's Harry Callahan proves to be the deadliest authority figure ever. Don't let those tweed suit jackets with maroon jumpers tucked neatly underneath fool you.