Bloody Envelope: Last-Minute Halloween Prank

As Halloween nears, you might not be able to do all the stuff you wanted to do, like bake scary treats, or design your own halloween costume. Certainly you might not have time to squeeze in a really scary prank for members of your family. That might not be a problem with this prank, because it's easy to set up and doesn't require a lot to pull off. You just need an envelope and fake blood.