I will admit that I would most likely fall for a prank like Droid Scare. This unsuspecting app lets you put on a false screen that you can use to tempt someone into clicking. Then, in classic Halloween fashion, a scary monster demon thing will appear suddenly and be complete with screams and music. A pretty lighthearted app prank to use, since you’ll already know what’s coming and will be waiting for the reaction of your friend.

Skip ahead to 0:48 for the actual example: