Episode 60 of "Malcolm in the Middle"
s03e19 Clip Show

After a car has had $700 worth of damage done to it, Hal assumes it was the boys who did it so he drags them to see a psychiatrist. As the psychiatrist asks them questions about their home and their parents, we are shown flashbacks of past episodes. When the psychiatrist learns how smart Malcolm is, he says it's obivous that he's the ringleader of all the trouble the boys get into. When he tells Malcolm about the placement programs, camps and special schools available for children like him, he gets really mad. When Hal returns, Malcolm tries to tell him about this and Hal sends the boys out to the car so he and the psychiatrist can talk in private, but as soon as they go out the door we hear Hal's car crash outside, and we learn that it wasn't the boys at all, it was him forgetting to set the brake on his car.