Catch Phrase: Several, but the most memorable would be the oath of the dachshund club: Alles für den Dackel, alles für den Club, unser Leben für den Hund! (Everything for the dachshund, everything for the club, our life for the dog!) There is a pun hidden in there: The last part alludes to the expression Alles für die Katz! (Everything for the cat!), meaning All in vain!
Control Freak: Dieter; and it drives everyone around him (especially Mr. Makielski) crazy!
Genius Ditz: Dieter has managed to screw together technical marvels such as security enforcement machines and an exploding chicken. When Hilarity Ensues (which is inevitably the case!), then because these contraptions work a bit too well.
Limited Wardrobe: Except for Carmen, there isn't much variation regarding what the characters wear. In Dieter's case though, this is justified: Most of the time, he either wears his janitor coat or his club uniform, a visual cue to his two obsessions.
Our Presidents Are Different: Karl is only the president of the dachshund club (and isn't even the top of the hierarchy), but the club members treat him as if he were an actual head of state.
Putting on the Reich: While the uniforms worn by the dachshund club members look nothing like Nazi uniforms, there is their ridiculously militaristic and ceremonial behavior. But one cue takes the cake: The title of President Göbel's superior actually is Gauleiter!
Serious Business: For Dieter and his pals, everything that has to do with dachshunds.
Status Quo Is God: The only reason why, after all what he has done, Dieter still has his job / his dachshund club membership / his wife...
The Stoner: Two of the Krause's neighbours are a New-Age Retro Hippie pair. Dieter wants them to be kicked out of the house, because he (rightly) suspects them to possess marihuna marijuana, but he never actually finds evidence of this.
Bodo's (Yes, that's the dog!) full name is Bodo von der Hermannsklause.
In the episode where Lisbeth has a not really rich suitor, Tommie speculates that if she leaves Dieter for this guy, they will soon be named "von Krause"! (Uh, Tommie? Naming conventions do not work that way...)