I feel you man,I myself had some great time when I just got my eagle back and my first MM game was with 3 russians,who don't even know what eco rounds are and start raging immediately after the first pistol round is lost,we lost 16-0,Now I'm enjoying my 7 day ban vacation and have lost my eagle,I just wish valve would implement a "no russians" button in the competitive lobby before searching a game 
So you do a lot of shit then? Cause u dont get immediatly 7 days ban ^^
For me usually the issues are TK by accident,at the start of the round a missclick and you're banned,most of my bans come from there,besides,this is my first time in 3 months that I get a 7 day ban,But this time it was the russians with their stupid mentality,I just rage quitted since I cba to play with brainless people,and I knew that I would get 7 days ban,that's why I call it a vacation.