Foreigners' Street Prank on Portable Toilets

There are mainly two ways foreigners prank portable toilets on the street:

One prank method involves creating a misunderstanding using a blind person's plea for help. Specifically, a blind person is arranged to ask passersby for assistance in looking after their guide dog. Then, the blind person enters the portable toilet on the left side of the street. In fact, this portable toilet has a special design. After entering, the blind person can quietly exit through the back door and quickly enter the portable toilet on the right side. When the sanitation worker comes to collect the waste, a pre-arranged couple will inform the worker that there is someone in the left toilet and no one in the right one. Based on this information, the sanitation worker will choose to lift the right toilet. At this point, the couple, who originally thought there was no one in the right toilet, will be completely confused because there is a huge discrepancy between their expectations and the actual situation, and this unexpected situation creates the prank effect. This prank method cleverly takes advantage of people's惯性思维 (inertial thinking) and trust in others. By setting up hidden steps and misleading information, it puts both the participants and onlookers into an absurd and unexpected situation.

The other prank method is to modify a public toilet to make it drivable. An uncle is arranged to enter a specially modified public toilet. This toilet is no longer a stationary facility in the traditional sense but can move like a vehicle. After the uncle enters, he starts the toilet and makes it speed past passersby. Without any psychological preparation, when passersby see the originally stationary public toilet suddenly move and at a not-slow speed, they will naturally be taken aback. This prank method breaks people's conventional perception of public toilets. It takes advantage of people's cognitive inertia regarding the fixed form of common things. By giving the public toilet a brand-new and unexpected function, it creates a strong visual impact and a sense of surprise, thus achieving the purpose of the prank.