A taxi driver acted in a psychotic manor toward me. Cannon St -> Tooly street

OK heres your revenge. (taken from a great Norwegian short film)

An old guy who has car trouble and is stood by the side of a desserted winter road. The old man is looking for help when a cab driven by a young man drives past and stops. The old man runs after the cab. The cabbie, does that pretend to stop, drive off, pretend it was a joke and stop again, drive off thing. Then eventually desserts the old man laughing.

On a later date in town the old man spots the cabbie at the back of a taxi que. He gets into the first cab in the que, and offers to blow the driver for a lift home. He is told to fuck off. The old man repeats this, along th que, untill he gets to the young cabbie who had desserted him, yet fails to even reconise him now.

He gets into the cab and gives the cabbie his address and some money.....

i dont get it