When I was young, I used to watch two drops of rain roll down window and pretending it was a race, I seriously thought that no one else did this! Maybe I wasn't such a weird child. I would do this in the car all the time!
Many different templates for "Boo-ing" your neighbors. This is so much fun -- we've done this a couple times and the kids loved thinking of creative ways to "Boo" friends and neighbors. This sounds fun :)