Some costumers are just dumb.... wait, let me back up a bit.
There is this good old routine of the "Vanishing Bandana". An audio track is running. A voice is coming up telling you to teach you how to vanish a bandana. But the magicians mishears the instructions and instead tries to do it with a banana. It's a classic routine by now.
Now this gag works in English quite well. In German... not so much. Banana and Bandana are very close. The German words are "Banane" and "Bandana" So technically the routine could be done in German. Except for the fact that nobody knows what a "Bandana" is. Seriously, nobody knows. The native German word is "Kopftuch" which means "head cloth" which totally describes a bandana. And "Banane" and "Kopftuch" are clearly different words.
Now still some German magicians perform this routine using the Banane/Bandana gag and wonder why it doesn't play that well. And a German magician/voice actor (who is unable to speak proper German btw) is selling this routine.
Some costumers are just dumb.