An expert on manners and etiquette visits Mr. Van Driessen's class. Beavis and Butt-head aren't very good at learning manners, and cause a fight between the adults.
The boys loiter outside a construction site, then sneak inside to explore after the crew leaves. Butt-head crawls into a pipe and gets stuck - and the media soon broadcasts it, interviewing him and Beavis for television reports. Of course, Beavis has to explore the pipe, too.