As Long As Your Backpack is Comfortable

We all know the unspoken rule of leaving space between yourself and others on buses and in public places, if possible, right?  It's one of those little things which makes life a bit easier for everyone.  Then there's this hipster (center):

He gets on a semi-crowded bus (most seats full, no standees yet) and makes a big deal out of putting his backpack on its own seat, then crams himself into a double seat with a big guy who was already sitting there.  Not cool, man.  Put your backpack on the seat between you and the big guy if you must, but give him some space!