The "useless kitchen tools" thread seems to have spawned some posts of pranks people have played on others, or have had done to them... Sending people to find a can of striped paint, left handed what-u-macallits, etc. So far it's been a lot of fun, so I'd like to see it continued here. I'll start. When I was (a lot) younger, we used to outfit people with a bucket and a stick, and send them on snipe hunts, cautioning them to watch out for snow snakes. Remarkable how many would actually fall for that.