This could only come from the great laboratory of death known as free-for-all in a multiplayer shooter. Given enough matches, enough combatants and enough button-spamming, you’ll inevitably discover that a bouncing betty to the face is a one-hit kill Call of Duty: Black Ops II — without detonating.
This Dud Is Still A One-Hit Kill In Black Ops II

A couple points:
1. the player was already wounded from the gun fight
2. It’s not easy to hit someone in the face with a bouncing betty throw.
So, stop whining.
It is COD after all, anything could happen.
Shoulder = Headshot :/
Did the same to someone with a C4, but as ‘Uh…’ already said the guy was already wounded (same in my situation).