Recently, the intercom to our agency lobby was malfunctioning. This sign was posted near the elevators.
The top line reads "PLEASE NOTE THAT THE BUZZ IS NOT CURRENTLY WORKING."
"BUZZ" was scratched out and replaced with the only-slightly-more-correct word "INTERPHONE."
Apparently, interphone is a real word (though not one I'd ever use with a straight face). I think it was just scrawled there by someone appalled that an ad agency was freely admitting that their buzz wasn't working.