The setup is simple: this guy used a shopping cart, and didn't bring it back. So a bored traffic cop tries to get his attention, and encourage the man to do his basic civil duty at the grocery store.
What follows is six minutes of delightfully hilarious pettiness. I can't believe I watched it all, but it was worth every second of it.
Here's part one:
And part two (TRUST ME, it builds wonderfully):
Image: Stilfehler / Wikimedia Commons (CC-BY-SA 3.0)