Zack finds a 'special' key that opens the apartment across the hall, which turns out to be his fantasy lair. A number of the posters on the walls and door are for an apparently fictional rock band called "Scrap Heap". One of their posters features the advice, "Be careful what you touch . . . and wash your hands after" above the words "Farewell World Tour". Another poster for the band advertises "The Final Tour - Revisited!". This band's name is seen or mentioned in several other episodes in the series.