This prank is absolutely hilarious. Replace the mirror in a bathroom with a window pane, place a set of identical twins in identical rooms opposite each other and proceed to prank everyone who walks in. Theyve all become a vampires!Check out more hilarious pranks.Oh boy, if you want to see a perfect reflection of what a hilariously funny video should be like, look no farther than this perfectly executed mirror prank. All of the funniness inherent in this situation just gets refracted through the reactions of all the saps that get pranked. What no more hilariously funny mirror puns? Their hilarity will have to be retired. Still a hilarious video, though.