I seem to recall a nasty episode many years ago when a poor sod on security accosted Andrew in the Palace Grounds. The said Andrew said "do you know who I am?" and the poor sod, new to the job, was hauled over the coals.
From tomorrow it would be "do you know who I was?"
[Or, "I don't know who you are, but I know what you are!]
Zero sympathy from PPRUNE I note.