Candy Thieves vs Rigged Candy Bowl

Summary by Krater

Mark Rober builds ten different elaborate Halloween prank setups to catch trick-or-treaters who take more than one piece of candy from unattended candy bowls.

From the video

Answers: How do you build a prank to stop kids from stealing Halloween candy?

• Halloween candy prank traps
• motion sensor candy bowls
• engineered security contraptions
• child safety testing in engineering
• psychological warfare in pranks

What it concludes

• Ultrasonic speakers produce highly directional sound waves that do not diffract around barriers.
• Sugar glass bowls look and behave like normal glass while being totally harmless and tasteless.
• Combining motion sensors, baby monitors, and automated traps can effectively catch and deter greedy trick-or-treaters.