Whilst I prefer if everyone was civilised and everyone lets CX do their thing, there is recurring anecdotal evidence that CX tends to serve the pax that whinges the loudest/misbehaves the most...leading to hypertensive agro on everyone's part.

It's like a KMB bus queue - people will queue if everyone else does. But if one C9 successfully cuts the line and pushes her way onto the bus, the queue will devolve into a mob.

http://the-sun.on.cc/cnt/news/20120726/00407_035.html