At school one morning, Tedd noticed that people were giving him weird looks. Elliot said "XYC", pointing out that Tedd had breasts (had turned himself into a girl). Elliot asked how Tedd could accidentally come to school as a girl without noticing something was amiss. Tedd revealed he turned himself into a girl the previous night for his evening shower. Susan and Sarah met them later, and Susan wanted to hammer Tedd but couldn't since girls couldn't be hammered. At lunch, Tedd unashamedly admitted that he got perverse pleasure out of turning into a girl, causing Susan to give him an IOU for a hammering. At gym class, Tedd refused to change into his gym clothes (and to sit with good posture) and claimed he was rebelling, in order to hide his being female from his gym teacher. Tedd made sure that he was male again the next day, but Elliot said "XYB" pointing out that Tedd had accidentally left himself with a tail, which didn't bother Tedd in the slightest.