Leaving work at 5 be like:
My job: no, you can't go off-queue at 4:59. If your phone rings you must answer it and take as long as the client needs. It's ok, we pay you overtime for this.
Also my job: you're answering phone calls 1 minute before your shift end and forcing us to pay you overtime. You're padding your hours and stealing time, and it needs to stop.