Can someone help me find this movie or show that I'm thinking of?

Alright, so many, many years ago, when I was a child, I remember watching something on television that's stayed in my memory. I'm not sure if it's a movie or a show. But here's a scene that I remember:

A guy is attacked by Rottweilers. Some psychopathic teenage boy willingly sicks the dogs on this guy, but eventually calls the dogs off. The teen then tells the guy that he'll call him an ambulance, as long as he doesn't tell the police about what really happened.

With the vague amount of details I just gave, if you can find what I'm talking about...than you are the best of the best.