How to get revenge on someone with facebook?

[James]

My brother has posted several things as me on my facebook. (There's other things that I won't get into also. I'm not so petty I would do this for minor facebook things, anyway) I want to do something similar to get revenge, but not the same so he won't know it's me. I was thinking of changing slight things on his profile or "liking" embarrassing pages as him. I'm now thinking that that is a little too subtle, though. Do you think it would be good revenge to post his password on Facebook so that his facebook friends can mess with him? Do you have any suggestions?