King of the Hill Season 4 Episode 4

When Hank becomes a substitute shop teacher at Tom Landry Middle School, he is so popular that he may beat Peggy as Substitute Teacher of the Year. When Bobby is found bringing a keyhole saw to Hank’s shop class, because the class has no tools, Hank gets in trouble for violating the school’s zero-tolerance policy on weapons. The punishment is that he may no longer teach shop at Tom Landry.