In Slovenia, some extreme sports enthusiasts tried themselves as a rocket man.
A 60-meter launch guide was installed at the top of the Trbovlje thermal power plant pipe (total height 360 meters), and the catapult capsule accelerated along its length to 145 km/h. They put two thrill seekers in it and literally shot them into the sky. The guys jumped almost 76 meters above the pipe, celebrated their success and fell. Good thing we passed the tube and with parachutes.
We really understood the phrase "fly to the drain".