According to MaxoidSam, items were hidden in the Sims 2 Glamour Life pack on purpose. It wasn't a mistake, or a half-finished buggy item tucked away out of sight to "finish" the game on time, oh no - it was to give the modding community something to do! Yeah, right.
My friend rohina got banned from the official Sims 2 BBS for calling him on it, though uh, the reasoning leaves a lot to be desired. But I agree. Two words, one of them being "bull", the total describing excrement of a male bovine.