As indicated in the header, I'm in the No category.

I've known a very nice family man, who was arrested by the IT squad of my local police department (when I lived in another state) for internet child pornography. Was quite a surprise to see his mug shot in the local paper.

And as others have indicated, you won't know who they might give the password out to.

If you want to get to know your neighbors, invite them over for a BBQ.