"knock knock knock"

Here is one of the more recent ghostly encounters my dad has experienced at his house.

Late at night, he was sleeping in bed, and he kept hearing a very distinctive knocking on the wall. I've heard it too before- I always dismissed it as an animal in the attic/wall, or maybe a branch scraping against the house. Anyways, this was coming from the side of the house were there are no trees near the house, or really anything.

Anyways, he keeps hearing these sounds, knock, knock, knock... and they seem to be pretty rhythmic. My dad, feeling ornery, decided to knock back.

the wall went "knock knock knock!"
My dad echoed the same pattern.
The wall knocked the same pattern again.
So my dad knocked: "knock knock... kna-knock"
and seconds later the wall answered the same back!!! It repeated his pattern!

My dad decided he had enough of teasing the ghost that night, and went downstairs to sleep. :D

Mickey the cat vs "ghost"

I've gotten interested in the paranormal again (thanks creepy ghosts!) so I'm going to be updating this again. I'm surprised I haven't posted this before. This is the only picture I know of that has anything "weird" about it. Now, for fair note, it could be a hair, and some believe it to be so. But, you can never tell. I always thought it was strange the way Mickey (the cat) was looking at the camera.
On a side note, I need to look through old pictures and see if I can find anything. Next time I'm up there, I plan on taking some more, just to see if I get anything besides random dust orbs and haird :D