You laugh - it happened one time... Well, without the "It's not supposed to have cockroaches inside of it?" part. Someone bought a pack of Polaroid instant film and put it in their camera and the prints came out horribly (even more so than usual for this type of film). When I opened up the camera, all kinds of crap, including roaches, came out. Gee, no wonder it doesn't work...
Anywhoo, as for "bad" customer service from Nintendo - only once, if you want to call it that. When the Game Boy Player first came out, I called to see if there was any way to get the Super Game Boy borders from older GB games to appear on the screen. The guy didn't seem to know what I was talking about, and when I used Link's Awakening DX to describe it, he acted like I was crazy because Link's Awakening DX was a Game Boy Color game and wouldn't work on the Super Game Boy... We finally agreed to disagree, and I just came to the conclusion myself that there was no way to use the SGB borders with the Game Boy Player... I kinda felt the guy was being rude to me, but he probably thought I was like the nerdy guy in the video who thought he knew it all.
But, for the record, the DX version of Link's Awakening does, in fact, play in the Super Game Boy.