I thought the 'freezer trick' for fixing a dead hard drive was total nonsense
A guy brought in a laptop with a clicking drive and said he'd heard putting it in a sealed bag in the freezer for a few hours might work. I told him it was a bad idea and would just kill it with moisture. He insisted, so we tried it on his already dead drive. We left it for about 4 hours, let it warm up fully, and it spun right up long enough to pull his photos off. It only lasted another 20 minutes before dying for good, but it worked. I still think it's a last ditch move, but I've used it twice since when data recovery was the only goal. Has anyone else had a weird trick like this actually save the day?