==I've suspected that the manufacturer has been actually encouraging this story. ==
It is an explicit part of their marketing. This [0] excellent advertisement in Chicago states:
"Do Not Enjoy. Responsibly."
[0] https://www.reddit.com/r/chicago/comments/19dvd2j/brilliant_...
In Sweden it goes
1. eat rotten herring (which you'll not enjoy, because it's rotten fish, yo)
2. clean your palette with a disgusting shot of home made malört spirits (or aquavit, equally disgusting)
3. goto 1 until your drunk
4. get laid
Very, very, very few people ever reaches step 4.
The liquor store I go to here in Chicago has a small Malort ad on a pole that says "These pants aren't going to shit themselves."