Ensure that all pranks can be easily reversed or, better yet, that they make the world a slightly funnier place [1].
Similar themes appear in mainstream media like Time Stop Hero or The Flash , where super-speed makes the world look frozen, often used for comedy or heroics rather than "naughty" pranks. time-stop train ~freeze time and play naughty pranks%21
Switch the briefcase of the serious businessman with the colorful tin of cookies held by the grandma across the aisle. Ensure that all pranks can be easily reversed
The Magnet Shoes. You notice a man standing with his feet slightly apart. Kneel down. Untie his shoelaces. Tie them together in a thick, clumsy knot. Resume time. Result: He lifts his left foot. His right foot comes up too. He stumbles, grabs the rail, and looks down in horror as if his feet have declared war on him. The Magnet Shoes