When Clair finds a marijuana joint in Theo's history book she and Cliff confront. Theo explains that it is not his and both Cliff and Clair believe him, but Theo feels that they are going to look down on him from this point on. So they next day he goes to school to confront the person it actually belonged to. Written by
Did You Know?
In the scene where Mrs. Montgomery asks for the sex of her baby, Dr. Huxtable opens the book to reveal the sex, and when she jumps up and puts her hand on the book and says, "Forget it," she turns her head because she is laughing too hard. See more
[Clair found a joint in Theo's book and jumps to conclusions
We don't even know if it is Theo's and you're already sending the boy to Turkey.