I never had a personal experience, but my father "walked" to visit two of my sisters: once very soon after he died, he came and sat on the couch in my eldest's living room; the couch pressed in where he sat, but she could see through him, he wasn't quite solid. She remembers thinking This will be OK, if he comes and visits once in a while. It felt companionate, she said. He never did come back, though. Then years later, the next oldest had a son she named after our dad. One night when she was just finishing nursing the baby, he came and looked into the crib at his namesake. She, on the other hand, was very freaked out by this. I would have loved it, I think. I wish he'd visit me.

And aren't poltergeists statistically linked to having a troubled and peripubescent girl in the house?