Has your name ever been announced on a loudspeaker or public-address system, and if so, what for? ~

You might say I have...

"Shuhak, cleanup in aisle 3" (work)
"Shuhak, report to the principal's office" (school)
"The winner of the cracker eating contest is Shuhak" (county fair)

Hello R,

(my name) (my name), report to the visiting room. 

excon

Sure, quite a few times.   

At school a couple of times. Once when somebody crashed into my car parked across the street. Another when one of my students came to school with a box of snakes that I give them extra credit for. Another time at a football game where I tackled the runner 7 yards behind the line of scrimmage. 

Many times. many places.  Most common at the Airport either in the Lounge or at the gate. 

Second most coffee/food/other operation and my order is ready.