Sti prank

Embarrassment at the highest when your facing the post man or woman who's handing over an important envelope that just so happens to have been put in the wrong envelope and the sti result are at the window opening.....showing positive results! (And a token Negative to help keep it real!) If the nosy postman or others in the house try to peek through the window further they will only see more embarrassing results......until your victim has the courage to open it and they will see they have been pranked. 

For maximum results this prank works best on signed for delivery or in a shared mail house......oh brutal!