I'd heard about this before, but then I came across this article today and found it utterly hilarious.
Read the story here.
Also, be sure and read the comments. My favorite?
I honestly feel sorry for all the other garbage that has to share landfill space with all those crushed cartridges, that's how bad E.T. is.
(Oh, and while you're at the site, check out the other 24 of the 25 dumbest moments in gaming, such as Acclaim's Marketing Stunts, The Biggest Controller in History, Ever, and who could forget Virtual Boy!)