Person A: Holy shit! He's got a knife!! What do we do?
Person B: Stay out of sight. Be ready to call the cops if he starts something.
Person A: Sounds like a good idea. But, what if he attacks us? Do you know any martial arts or have a gun?
Person B: Yes and yes. For now, we just watch...
*a few moments later*
Person A and B simultaneously "puke their guts out"
Person B: That crackhead just performed self-castration! Quick! Hand him a Darwin Award!!