You're a professional assassin, your pay is big, an you can hide your identity from all mafias or spies until now.

One day, You get orders to kill a mafia boss. At night, you sneak out, through the window to the room where the mafia boss is, you carry your assassin weapon, and when you get to the room, there's no one there.. until..

There's a loaded gun behind you, but right in the back of your head.. "I'm surprised to see a little assassin like you." He said while smirking.