Tom Cruise demanded his custom-built bus -- made for him using Scientology "slave labor" -- be fitted with a drawer for his slippers because the neat-freak Hollywood superstar didn't want anyone walking on the carpet, according to a former high-ranking church staffer.

What's more, Cruise used the luxury vehicle as a base for lover Katie Holmes to begin her 'Purification Rundown Program', a controversial detoxification and introductory program developed by Scientology's founder L. Ron Hubbard, it's been claimed.