Yeah, I remember us going to the laundry mat at 8:45 to "start our time" before going to the Kingdom Hall to meet for service. The unwritten rule was that you couldn't start counting time until 9:15 or 9:30 or whenever it was you left the Kingdom Hall to start service, but if you "started" your time early, the clock could keep going until we met back at the Kingdom Hall at noon. You could eek out another 30 minutes to an hour by doing the laundry mat trick.
That is a true sign that we hated what we did. We did everything we could to eek out extra time instead of doing actual witnessing! I'm so glad I'm out!