Believe us when we say that, we tried not to laugh at this USPS mailman’s unfortunate moment, but this proved nigh impossible…

We can’t see what went inside the Grumman LLV postal truck that has a three-speed automatic when the driver jumped out to deliver a package, but it’s likely that he either left it in reverse with the park brake on or the lever somehow shifted into reverse gear.

Whatever it was, the truck suddenly came to life and started doing the rounds in the parking lot with the baffled driver chasing it around.

At the 29-second mark in the surveillance footage, the wild truck knocks down the mailman, who remained on the ground until he saw the Grumman coming towards him for a second round…

Video