Ah yes, good old Inspector Sands!
He has been around for a few years and have heard him paged a few times now whilst traveling in London. Have told a few family members and work colleagues about this and twice now on hearing it I have edged my way towards an exit in order to be the first out. The first time I heard it the place was evacuated so was one of the first out, the second time it was stood down.
i never realized that this was a universal code. Back in the late 70s and early 80s, I used to work at a football stadium on match days and was aware of what a tannoy message for Mr. Sands to contact the match day manager meant.