A young Sapper is on the gate at Buckingham palace.

The RSM walks up to him and says "Right lad, the Queen is out on public duties I want to know the minute she gets back here, do you understand? The minute she's back you let me know".

"Yes sir " says the young Sapper.

So 10 minutes later a big limo pulls in through the gates, the young Sapper stops the car, pops his head in and says " scuse me ma'am are you the Queen? "

"No I'm princess Ann"

"OK sorry to delay you, proceed".

The next limo pulls in and he sticks his head in the window " scuse me ma'am are you the Queen? "

"No I'm princess Margaret".

" OK sorry to delay you ma'am, proceed."

Next limo pulls in and same again, he sticks his head in the window, "Scuse me ma'am, are you the Queen?."

"Yes I'm the Queen".

"Right" he says. "Well make yourself flipping scarce love cos the RSM is looking for you!"