You Get What You Pay For - S11.E9

Howard decides that it is necessary to build a second bathroom after he's forced to shave at the dining room table. To save money, he decides to allow Fonzie's students to build the room. Howard doesn't realize that the room will take all semester to complete, and this hurts his plan to make a killing in whisper-quiet toilets. He fires Fonzie and the students and says he'll finish the bathroom himself.