The funniest bit was that they did not accept they were dead on the Earth plane
I totally get that. In fact, many spirits of the deceased do not realize they are dead. Especially if they left their bodies abruptly, they can't tell the difference because they still see their etheric bodies that look just like their physical bodies.
My husband woke up one night shocked to see his deceased brother sitting on the foot of our bed. His brother was holding the side of his mouth saying that it hurt. My husband said, "What are you doing here? You're dead." His brother looked at him and said, "No, I'm not. I just had to go away for a while."
My husband woke me up, quite shaken, and we talked about it. It didn't surprise me, but this was one of the first times my husband had encountered a spirit during waking life.
Sometimes, the deceased don't want to cross over completely either. They liked their earth incarnations and wish to continue experiencing them. They might even recognize that they are in spirit form and they have fun with that, scaring people or peeping in on them. I think it's entirely rude.
We have a lot of creative power with the energy vibrations we emit and we continue to do so on the other side.
I did try to show them they could live whatever type of house they wanted, and tried to show them how they could reshape their home. But it always popped back into the form they thought it 'had always been' in a few seconds due to the persistent pressure of their beliefs. A bit like trying to build a sandcastle on the beach when the tide's coming in.
Yes, that is because of what they're minds are creating as far as energy vibrations. They see what they wish to see.
Hell is created that way, too.