I just need to vent real quick..

I find it SOOOO annoying when people leave their trash in my car or in my room. Like I get that you might forget like once and a while but when you leave a freaking cup and a bunch of trash in my car or room I start to think that it was on purpose. If I am being nice enough to let you come over or to drive you somewhere PICK UP BEHIND YOUR FREAKING SELF!!!!!