My old university prof used to say: "How many Germans do you need to change a lightbulb? One, because we are efficient and don't have time for humor." (German university + German prof)
Yeah, the Austrians are saying that, but here in Germany we say the same about them.
"Although the film is not officially part of the German training and education system for forklift trucks, it is frequently shown by instructors to lighten the mood."
https://en.m.wikipedia.org/wiki/Forklift_Driver_Klaus_–_The_...