In 1967 a Munich resident, Helmut G. Winter, built a catapult to launch potato dumplings at the low-flying, noisy planes flying over his house. For one reason or another, the West German Luftwaffe pilots eventually changed their flight path. – WTF Fun Facts
Luftwaffe
WTF Fun Fact – Rettungsboje Rescue Buoy
The Luftwaffe planted rescue buoys (Rettungsboje) in the English channel for downed pilots to survive in. They contained food, alcohol, clothing and games. – WTF Fun Facts
Source: https://en.wikipedia.org/wiki/Rescue_buoy_(Luftwaffe)