Re: The worst customers...
"Going even further off-topic, I heard from a friendly PC once about the new Chief Constable turning up at a local police station, and trying to walk into the back areas without presenting ID, taking the "Don't you know who I am?" line to the desk Sergeant...."
A vaguely similar thing once happened to my ex. wife. At the time she worked on the gate of a prison. The rules say that everyone entering is to show their ID, every time, regardless of who they are or how many times they've been in before.
On this particular day, the local MP was visiting and he took great exception to being asked to show his ID.
"Don't you know who I am?"
'Yes sir, I do, but no one is exempt from the rules.'
The MP in question is fairly well known for being a bit of a dick I think.