Following on from the knobbly stick, here’s a story about a knobbly broomstick.
All you need to know to understand the film is:
1. Köln and Düsseldorf are rival cities
2. At Karneval time, people from Köln greet each other with “Alaaf!” and Düsseldorfers greet each other with “Helau!”
3. This clip was created by a Kölner
4. In the clip, a new piece of voice-activated street-sweeping equipment is being tested. To operate… just say “Alaaf!”