Ok, I am now a senior in High school, and it is time for me to start planning a prank. The only problem is the past 4 years the seniors have done the same un-inspiring prank: they spray painted obscenities on the shack (a place that seniors can go on study hall/lunch, has 3 tv's, dvd vcr, refrig, microwave, ps2, xbox, ps1,n64 boom boxes food, whatever the class members bring in we can have) So basically I have no frame of reference for what a "good" prank is. So what are some good ones you guys have seen/done in the past (don't tell me about breaking sh!t I want good ones) I won't do any pranks listed, I just need a base of knowledge.