I will often play a bit of Counter-Strike: Source when I'm in the mood for some de-stressing after work. Many servers, unfortunately, like to throw in odd sounds such as an announcer voice yelling in "Multi-kill!" "Ultra-kill!" "God-like!", if you get on a kill streak. These can be satisfying at first, but then they go over-board, by putting in new sounds that don't fit in at all, such as obnoxious join songs, songs for when you do certain things, voices from cartoons people can spam, and it just gets plainly obnoxious. For me though, I just have to go through and copy a good "Null" sound, and use it to cover up all those add-on sounds servers love so much, so I can play in my own peace.