I didn't mean to start an international incident, I've never flown a Loco, oh I did fly KLM the other week, they're scrimping by no longer serving alcohol in economy so I'll consider them a Loco from now on.
In my post I was referring to the individuals who are knowingly putting an aircraft over it's anticipated weight and without declaring the excess.
Accepted, the check-in staff and boarders should be more dilligent but it is these passengers that seemingly don't care if the aircraft gets off the ground or not, saving a few dollars on excess baggage or clearing the destination airport, providing they make it that far, 10 minutes quicker seem to matter more than their own lives and that of the other passengers and crew.