In my soldier config I have mwheeldown set as switching to rocket launcher. So I occasionally just scroll down even when I already have the rocket launcher out. Dunno why, to really really make sure I don't have the wrong weapon out maybe (happend a lot before I had configs). Still pretty annoying sometimes when I play other classes with another config
I also spam the Incoming voice line the whole time without reason
And I tend to hit ceilings and walls I come across with my melee when I'm not in a fight