Some of my vehicles have only had a glow in the dark plastic handle on a wire. It didn't even really glow. I'm not even convinced it wouldn't have broken off if ever pulled on.
I don't know if there are newer standards to this, though.
In college I had a 90GB OCZ Vertex, or maybe it was a Vertex 2.
It would suddenly become blank. You have an OS and some data today, and tomorrow you wake up and everything claims it is empty. It would still work, though. You could still install a new OS and keep going, and it would work until next time.
What a friendly surprise on exam week.
Sold it to a friend for really cheap with a warning about what had been happening. It surprise wiped itself for him too.
Last summer traveling down a rural road in southwestern Ontario, Apple maps told me to return to the route. We hadn't turned in 10 kilometers, but it was showing that we were 200 meters into a cornfield.
I don't think I could have ended up there if I tried in the Golf we were in. Nice try.
My kids thought it was the funniest thing, but it's a good technology lesson.
That last paragraph sums up the ZFS defrag procedure at one shop I worked at. Buy new disks and send/receive the pool.
At our size and use case the timing was usually close to perfect. The pools were getting close to full and fragmented as larger disks became inexpensive.
It amazes me that every link the kid's school sends is a tracking link, and not always the same tracker.