A frined of mine received the long form a few years ago and had great fun describing his one bedroom apartment with multiple wives and children and no inddor plumbing.

I was once designated a "trackable " residence. Meaning that some silly woman, when she had nothing better to do, would come ringing my door bell (usually around 10:30PM) to discuss changes in my life style. This was supposed to continue until the next census. The night I finally refused, she left with a threat "You know I represent a FEDERAL agency! I can make your life difficult." My lawyer sorted that out with her boss.