A little over 20 years ago, I got the long form census form - you remember, the one with questions such as if we had indoor toilets, etc? I looked over the form, filled out how many people were in the household, left everything else blank, and mailed it in.
I got a call from the census bureau a month or so later, wanting the information I left blank. I told them the census is a count of the people to apportion representatives, PERIOD. Everything else on that form was an invasion of privacy and none of the government's ******* business and hung up on her. Never heard from them again.