What makes me rage?
My neighbors' collection of cats, which they basically acquired one random day and loosed on the neighborhood, never to be checked up on again. We had to get an ultrasonic animal repellent thing to keep them out of our house (one in particular likes to come inside and pee). I'm gonna miss the raccoons on my porch that the thing will now drive away.
Self-absorbed people whose ego is not totally smashed while I'm watching. This is why I find it hard to find humor in many old sitcoms that used these kinds of personalities for "humorous" effect.
People who think TF2 (or any game, for that matter) is more than a game and believe that Valve (or any developer, if it's any other game) owes them something for changing the game that has become their entire lives in a way they didn't like, and proceed to moan about it/hinder their team in-game/put others down verbally in what is probably an attempt to sound cool and tough and powerful, but really has the exact opposite effect and generally doesn't get them kicked fast enough if ever. (I ran into another one of those "Lifeless Losers Against Wires Coming Out of Heads" today... and on my team this time.

Some people just wanna play the dang game right, why hog server slots just so you can repeatedly remind us you have nothing better to do with your time than going out of your way to hinder people trying to play an online video game the correct way?)
I don't like most of the Bonk songs I've found, but Mortal Kombonk has struck me as different. I guess because it's not actually entirely composed of Bonks and has a lot of other sounds making up most of the music.