had a camera covered by Best Buy warranty, one of those point-and-clicks (Canon Powershot SD400 or something). After a while, something mechanical failed --either the lens barrel wouldn't extend/retract, or the lens cover wouldn't close up. Also the slider switch (to select Photo/Video/Playback) was loose. It was covered by the 4-year warranty, so I went to Best Buy and they took it and sent it back for repair.
After a month, repair dept sent it back to my local store, and I picked it up. It was exactly the same: mechanical failure, loose slider switch. I showed the staff at Best Buy, that it was malfunctioning and I hadn't even walked out of the store after picking up the camera. So they sent it back for repairs a second time.
After another month, repair dept sent it back again. Again it was exactly the same, so I told the staff, WTF?? THey said they'd check. After a while, someone called and said, the repair dept could tell that I had damaged the camera, so the repair wasn't covered. What!? I spent almost an hour on the phone with some Best Buy headquarters person, saying, Hey, I just sent it back a 2nd time after having gotten it back from your repair department, and the 1st time there was no mention of damage, so it must have been the repair department that damaged it! (I was confident that it had not been I who damaged it.) The guy said that just because they send it back the first time it doesn't mean that they guarantee that it's in good condition, so it was perfectly valid to say that the 2nd time it was in crappy condition because it was already that way when they sent it back the 1st time.
I said, fine, what about the slider switch that was loose? The guy said, it was already loose, as I had given in my statement the first time I sent it in. That's when it struck me: if I had *NOT* told them about the slider switch, then *THEY* would have been responsible for fixing it since it would seem that they had damaged it during the repair process.
It was maddening, but finally I found a reason to send it back (I remember now: the first time the lens had gotten stuck in the retracted position, and now I could say that it was stuck in the extended position) and it went back. Of course it came back unrepaired, and I ranted and raved at the local Best Buy, saying that I had been missing my camera for 3 months now (in fact, it was a big deal since we had a birth in the family and I had wanted to take pictures). The local staff quietly upgraded to --well, an equivalent camera, but of course the model number had advanced since the 3+ years since buying the malfunctioning camera.
Lesson: if there is more than one thing wrong with the camera, do NOT mention anything else wrong. Gives you more leverage when they try to send it back saying that repair is not covered, and you can say, "What about this here thing wrong? Did you cause this?"
Maddening.