A bloke writing at the post office desk was approached by an elder fellow with a postcard in his hand.
The old gentleman politely said, “Sir, I’m sorry to bother you but could you address this postcard for me? My arthritis is acting up today and I can’t even hold a pen.”
“Certainly sir,” said the younger bloke, “I’d be glad to.”
He wrote out the address and also agreed to write a little message and sign the postcard for the man.
To conclude, the younger man asked, “Now, is there anything else I can do for you?”
The old fellow thought about it for a moment and said, “Yes, at the end could you just add,
‘P.S.: Please excuse the sloppy hand-writing.’”