Reading the title I assumed it would be a rant towards fellow passengers.

Since it isn't allow me throw in: I HATE WHEN PEOPLE KEEP THE LIGHT ON when the cabin is dimmed for take-off and landing, or during overnights when they're not reading!

But back to topic:
On a recent red-eye, my GF's light in WT+ wouldn't switch off (faulty switch I assume). After telling members of crew, and realising that it did disturb me when I wanted to sleep, the CSD eventually came up with a bunch of tissues and some band-aids to tape over it. ^

Sometimes you gotta go low-tech to find a solution, surprised that your crew figured there was "nothing that could be done" in F!