I hope you don't mind if I go slightly off topic here shadowfax but your RCD and the difference between what you meant and what I thought it was reminds me of the firm that does the security at our local wine festival. They are called BSE Security (or Services) and my friend, a doctor, calls them the mad cow guys as he thinks 'Bovine spongiform encephalopathy' when he sees BSE :lol:
He does not call them this while they are within hearing mind you as they are all very large Pacific Island lads and although he himself is 6ft 3, he is not as well muscled as them 8)