High Holidays S11E11: "Frederick visits Frasier in Seattle, and the family is shocked to see him going through a "Goth" phase. The family talks about the rebellious phase of a child's life, and Niles is stung to hear Martin say that he was always one of the good kids. He decides to rebel by consuming a pot brownie supplied by Roz, but hijinks ensue when Martin eats it." IQ S6E19: "Frasier and Niles' long time competitiveness is reawakened at a silence auction where the two spend eight thousand dollars for a lunch with three Nobel Prize winners. Determined to find the root of the fierce competition, the two remember an old IQ test they took to which they never found out the results. The brothers dig through their childhood papers and find the IQ test. Now the only question is which one of them has the higher points?"