Fine Details
He seems to have thought about every last detail. For example, at the front area of the plane, there is a shoe rack that is filled with many pairs of slippers which are ready for visitors to use when Campbell welcomes them into his home. He would rather have people wear slippers and socks inside the aircraft to maintain its cleanliness since the housekeeping of such a huge home isn’t very easy.
Number 1 Rule
Having seen the glass floor getting dirty quickly due to the surrounding forest, he always sticks to his sock/slipper rule to make sure that the airplane stays in pristine condition. Despite the fact that he lives alone, he still takes pride in the home he has created for himself.