Think about it: when you climb into a taxi, how often do you actually take a good look at the driver?
Some of the people filmed in this prank from taxi company Hailo were practically inside the cab before they realised the obvious problem with the person sat in their driver's seat: namely, the fact that he was a three-year-old boy.
Hailo filmed the prank using a man disguised as a car seat who sat behind the child, creating the scarily real illusion that the boy was actually driving the taxi – some of the stunned reactions from people in the street are as brilliant as you'd expect.