Grade School Confidential

During Martin's birthday party, Principal Skinner and Mrs. Krabappel strike up casual, yet awkward conversation. When all of the kids get sick from oysters, Skinner and Krabappel hide out in a kiddie playhouse and kiss--which is witnessed by Bart. Skinner silences Bart by relabeling his permanent record so that way it belongs to Milhouse, but Bart soon reveals all when Skinner and Krabappel use Bart as their liasion to keep their liasion from being discovered.