I can sympathize with this Onion article: Son, We Need To Talk About This Supreme Court Obsession Of Yours.

I got myself in some hot water last year when I referred students to an Onion article about a successful trademark suit filed by a tanning salon against Tanzania, which ended with a preliminary injunction against the nation's use of its name. Several of my foreign students -- rationally enough, really, given how wacky US law can be -- thought it might be true because I didn't explain that the Onion is parody. The story is now pay-only on the Onion's site, but a blog report -- including some comments that took the "news" seriously -- can be found here.