Why does a man not get electric shock when walking across the metal floor looking after the dodgem cars?

Answer 1

The metal floor is one conductor. The other is the metal ceiling. Unless he touches the floor AND the ceiling at the same time, there is no path for the current to flow.

Answer 2

The man does not get an electric shock because the metal floor is likely grounded, meaning it is connected to the Earth's surface and can safely conduct any excess electrical charge away. This grounding helps to prevent the build-up of static electricity on the metal floor, reducing the risk of electric shock.