I sent in my form with 4 marked and nothing else. A few weeks later I was out in my garage when a census worker came by wanting the "rest" of the information. I explained to him that 4 people lived in the house and that no further information would be given. He stated that my case would be referred to a supervisor.

That was at least three months ago. No sup yet. I did see several census badged workers working at a table in the local Starbucks the other day, so yeah, they're not through harassing folks.