The joy of planning...
The thing that makes a good prank satisfying is the lengths to which one must go to accomplish it. A prank isn't like bullying someone, or placing the hand of a sleeping person in a bowl of water. Rather, pulling a prank is an artform that requires a lot of planning, considerable acting talent, and a fair amount of sheer gall. By the time a prank comes off you've been working on it for quite a while and, thus, seeing it come to fruition is something to be cherished.
Perhaps that's why I like this prank so much. As many of you know Yale and Harvard have something of a rivalry. This stretches back quite a long ways and shows no signs of abating any time soon. During a recent football game a group of dedicated Yale fans decided to perpetuate this rivalry with the help of a prank. Specifically, they decided to try to get the Harvard crowd at a football game to hold up a gigantic sign reading "We Suck." It goes without saying that they succeeded.* Take a look and admire the truly remarkable amount of effort that this required:
Mean? Possibly. Hilarious? Absolutely. A fine prank? No.
A superb prank.
* Not because Yale is so crafty or Harvard is dumb- just that we wouldn't be talking about it if it hadn't worked.