"BTW I saluted an Army Captain a few weeks ago as was riding past on a bike. Bless him, he actually sat up with arms straight to return the compliment."
I remember a senior CPO when he was riding a bike saluting my Dad in exactly the same way, stiff arms and eyes right!
When only a humble deckie on a yacht, after being invited on board one of HM ships by a friend I was at school with, saluting me as I left.