<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
What are some pranks I can play with pens?
<|assistant|>
Some possible pranks you can play with pens include: 
1. Hide a pen somewhere in the office and have people look for it. Give them clues as to its whereabouts or have them compete with each other to be the first to find it.
2. Attach a piece of thread to the tip of a pen and hide it. Play a game where people have to try to "catch" it with their pen.
3. Get a few pens with the same ink color and fill them up with different colored inks so they now write different colors. Have the office participate in a pen color guessing game! 
4. Attach a string to the pen cap and dangle it out of reach. Every once in a while randomly move the pen cap up or down slightly, see if people can still write with it!
5. Draw a stick figure on a piece of paper and tape it onto someone's desk. Hide the pen behind it and when they go to pick up the paper, they can't find the pen!