How to prevent a user from closing an Excel workbook. The user won't know what to do!
This is a great little prank that will leave your co-worker confused and annoyed. Use with caution ;)
To make this work, you will have to install a small macro and make sure the workbook has macros enabled by default.
This is a particularly evil prank because the user will have no idea what is going on unless they are well versed in macros.
It's your fault if your co-worker goes postal! :P
Download the file attached to this tutorial to try this out. It will only work if you enable macros and you uncomment the single line of code in it (I had to comment-out the code so I could close it on my computer).