There are few things in this world as hilarious as a good practical joke, and this Dribbling Glass is one of the old-school classics! You fill the glass with water or juice or beer and your unsuspecting patsy gets a good soaking when they take a drink! Sometimes it's hard to get them to drink out of the glass, you can't really just hand them the glass and say 'drink this, please' because they know that something is fishy and they say 'no way, Jose". Maybe if you left some hot peanuts on the table and put the glass next to those they would eat the peanuts and WOW, I need a drink fast! I am not sure how the dribbling mechanism actually works but it really gives you a good shower when you think you are about to enjoy a big gulp of milk. I guess if I knew how it worked something would die inside of me, like when I found out how Doug Henning's flitting scarves worked (strings and a giant fan just offstage).