I need a good prank idea...?

Question:

I need a good prank idea...?

My youth pastor and one girl from our teen group are at camop right now. It is the last night of camp and my sister and I are going to pull a prank on them. However, they are in a building the size of a one story house and we won't be able to go to the camp until about 3:30 in the morning. Which means by the time we get there it will be somewhere around 4 or 4:30am. So whatever we do, we have to do it quick before the crazy early bird people start waking up. The problem is, neither of us have any idea what to do. Can you help?

Best Answer - Chosen by Asker: theres a few i tried here (under "popular pranks" section)

http://www.jokersdepot.com