I've heard (even) worse.
Once upon a time, I walked into this unknown to me gun store. In short order the clerk (and, I presume, owner - not a lot of large gun stores over here, and places like this tend to be strictly one man operations) finds out I'm a handgun shooter and starts showing me a Walther P88 he has for sale. He keeps emphasizing how great the gun is because it's made out of German steel. Sounds a bit weird to me but hey - some people are really into Mercedes-Bentz's, I guess someone can be really into German guns, too. So, what ever (even though I of course knew at the time that the best firearms were actually American made ).
Seeing as how I'm not really in the market for a new pistol, the clerk moves on and recommends some of their ammunition. Superior quality, he says. German made, he says. Tested on six million Jews, he says.
The. Fuck. Did. I. Just. Hear?!
Needless to say I never did buy anything from there. And I am happy to report the place went out of business a long time ago.
(You know, I really can't remember any truly weird gun store experiences since the late 90's or early 00's. I guess the increased legislation and reduced market drove all those fly by night operations out of business. Either that, or I just pick the places I visit more carefully now.)