So to my knowledge if you use the fuck out of a usb stick or sd card then the data on it will no longer be accessible. I'm probably going paranoid here, but I'm worried that if some super unlikely cruel twist of fate slams Thor's fuck your shit up hammer down on my life then both my hard drive and USB stick will die at the same time and I will lose some important files. So are there any warning signs I can look out for that suggest that the grim reaper is hovering over my hard drive or usb just waiting for the moment when it can reap my files away and fuck me up? Slightly off topic, I wonder if there is any way to purposely wear out flash memory for no good reason. haha.