maximum efficiency
I'm washing up a few minutes ago, and I hear a conversation. This is not unusual, but there's only one other person around. The guy in the stall was chatting it up on his mobile.
The line that made me stifle a guffaw? "I'm not at my desk right now, so I can't give you those numbers." That idiot was not only on his phone, he was in a meeting.
"Hey, Bob, what the hell was that noise in the background?"
"Uhm. Nothing. Must be static."