A few years ago, we invited some friends over for a Christmas party. Many of my colleagues were there, and many of them are German. Helmut, Franz, and Rudolf were there.
I was talking to Rudolf about his belief in the superiority of the communist party. I grew tired of the discussion so I motioned towards the window and commented on the weather, "I believe it's snowing". "No, it looks too wet to be snow," he said. The argument went back and forth for a few minutes: rain, snow, rain, snow...
Then my wife came over and settled the argument for us. She said: "Rudolf the Red knows rain, dear!"