i've watched that three times now and it gets funnier every time. my favorites are the woman on the phone and the dude that chases him and kicks him in the rear.
This guy was a little pissed the post office had locked out striking postal workers in Canada. The workers had chosen rotating pickets over a full blown strike, and the post office replied by locking them out. They were then legislated back to work by the federal government before they went on summer vacation.