Mobile Toilet Pranks in Japanese Variety Shows

Japanese variety shows indeed feature pranks related to mobile toilets, with common forms including 'toilet spraying,' 'man-made unexpected effects,' and 'self-moving public toilets.'

1. 'Toilet Spraying' Prank
   This is a classic toilet-related prank in Japanese variety shows. The production team typically uses hidden devices to spray water, foam, or other substances into the toilet while the celebrity is using it, creating a sudden 'attack' effect. For example, when the celebrity is sitting on the toilet, a large amount of water may suddenly spray from above or inside the toilet, causing the celebrity to panic. This prank exploits people's trust in the toilet environment, creating comedic effects through sudden 'attacks.'

2. Man-Made Unexpected Effects
   Another common form involves creating unexpected situations through human actions. For instance, some shows arrange for an older man to wait in the men's restroom. When the target enters the restroom, the older man deliberately urinates with 'overwhelming force,' creating exaggerated sounds or splashing effects, surprising or embarrassing the target. This prank relies on the clever use of the environmental atmosphere, achieving comedic effects by exaggerating everyday behaviors.

3. 'Self-Moving Public Toilet' Prank
   This is one of the more creative prank forms. The production team designs a seemingly ordinary mobile public toilet but hides mechanical devices or remote controls inside. When the celebrity enters the toilet, it suddenly starts moving, shaking, or rotating, and may even take the celebrity to unexpected locations. This prank combines visual and physical shocks, creating humor by breaking people's perception of toilet stability.

Summary
Pranks related to mobile toilets in Japanese variety shows typically achieve entertainment effects through suddenness, exaggeration, and unexpectedness. Whether it's the direct 'attack' of 'toilet spraying,' the man-made unexpected scenes, or the mechanical pranks of 'self-moving public toilets,' they all reflect the production team's creative transformation of everyday scenes and precise grasp of audience psychology. Although these pranks are funny, attention should also be paid to safety and ethical boundaries to avoid causing actual harm or psychological discomfort to participants.