Long story short, I have a month to prank my friend. And he is deathly afraid of ghosts. So I want to enlist your help to give him a big scare. I'm thinking a good idea is to have you go by his house 4 or 5 times over the course of a couple of weeks - start whistling/lightly howling outside his window and do some subtle knocking on his bedroom window. Just to give him a good spook. Nothing too crazy. If you can dress up like a ghost, that would be 100x better. Can talk specifics if you're in.