Aren't moshpits suppose to be against the rules anyways?
Also Archer, that whole serial killer thing is an analogy that can be reworded so that you don't cry about someone being compared to a serial killer. Someone is notorious for making messes wherever they go. This person was seen eating a bag of chips while surrounded at a place with chip crumbs and empty bags of chips everywhere. It would not be wrong to assume this person made the mess because of not only past experiences, but also because of the current situation. The past experiences just make it all the more likely that they did it since it has happened before.