Office pranks...tell me your best.?

I just love office pranks. One guy at work had this stuffed animal monkey. I kidnapped it and left an anonymous picture with him tied and gagged in a little chair. Since this point I have been leaving pictures periodically with clues...one with him behind bars and bananas out of reach, another with the great escape (stuffed bear helping to lower him out a window). And the last one I climbed a tree and tied his arms to a branch so he looked like he was swinging. Sometimes we send fuzz, seriously, dust bunnies to people by interoffice mail. Other things...leaving the gum that slides out of the package on someones desk only it's empty and with a note taped to the inside: Were you expecting something chewy and delicious? Oh I'm sorry maybe you can find a gum ball machine.

I want to hear some good ones. Even if they are just plain nasty.

I leave "I think your Handsome...Call me" notes, and give them the number of the police dept or a psychology center on co-employees' cars in the parking lot, while at work, and I've caught some guys made the calls...they come in to their cubicles excited thinking it is a girl, they even tell me about a girl who left them a note lol!

An oldie, but goodie... put clear tape over the phone mouth piece on the phone!

Switch a few subtle letters on a keyboard.

tape a rat trap under their drawer....that way when they open the drawer, it will break their fingers....

brought someone lunch - a whopper with 8 patties of beef.

Get a bag of oreo cookies, scrape out all of the cream and mix it together with tooth paste. Put the cream/tooth paste back on the cookies and place them in the freezer. Place the bag in the break room. It is better to use a plane tooth paste, no one expects their cookies to taste like mint.