Why the fuck are some of you so damn salty over an (accidental) stolen kill?

Most of the time it's accidental, and I get that they don't know that; but why in god's name would you get so damn salty over it that you'd waste a tier 3 feat just for the sole purpose of interrupting my execution. Why the fuck are you putting your anger of me above winning the damn game you fucking imbecile?!

Also excuse my anger, I've had a few bad games before making this post. I could've put a video, but moving files from Xbox to computer is damn tedious and it's late.