When you hear the idiots on guard making weird, creepy noises, most of us assume it's some regional guy, "RJ Kids" as I heard someone call them out last week, someone who was doing the same thing in high school detention a few years ago. They are less mature because... well, because they are less mature. And they know they have an audience. And they may not have a college degree flying their RJ around, so they know at best they are going to be stuck at the absolute rear end of the major's hiring line behind the guys who did complete college, so they have resentment, so they know they can feel superior if they can irritate the generally more mature professionals.