you have no idea how bored.
how about this thought - ghosts can't exist because the math does not work. How many humans have inhabited the earth since the first ape morphed into a human? A trillion, 10 trillion? i don't know, but a whole bunch. So, that means there could be trillions of ghosts roaming the streets. Why haven't I seen one? It would seem to me we would be bumping into them all over the place, like Times Square during rush hour.