I used my older laptop for a little more than three years. When I replaced it with a newer one about a year ago, I removed the old hard drive and dropped it into a 2.5" enclosure. The drive is starting to click once when connecting it to a USB port, and I'm afraid it'll soon shuffle off the mortal coil.
But is it rational for me to suspect the enclosure of killing off the hard drive, or was it just the hard drive's expected time to die? I'd like to continue using the enclosure, but not if there's a larger-than-remote chance of it killing another drive.