).I'm headed back to the theme park board where the happy people are![]()
That's pretty funny, considering you started this thread with an observation that you, apparently, were not happy about. 
I'm 45 years old and I've never heard anyone say sir or ma'am when they didn't hear a question, either.
We say "what?" or "excuse me?" It's what my mother said, and she was a true lady, too.![]()


"Excuse me?" that is what I ask.


You Mother sounds exactly like mine a true lady.
it wouldn't be "sir". It would be "sir?" or "ma'am?" with a question mark at the end--like the op says in her op.
things like that are lost these days, op. It is rare to hear kids ever say sir used in any way anymore.