"Remove before use"
Some years back, having gone down to a department at the school where I worked to sort out some issue or other, I suffered a rare attack of generosity (maybe there was something odd in the food that day...) and offered to take the box of empty toner cartridges, which I'd noticed was overflowing, up to the recycling box for them as it was on my way back to the IT office.
As luck would have it, one of them fell out of its black bag as I transferred them to the recycling box and I noticed that the pull-tab seal was still hanging out of the side. This prompted me to check the rest of them - about 80% still had the seal in! (I also emptied the recycling box and retrieved a few more.)
Cue a trip back down to the department and some inquiries about who normally replaced the toners... Goodness knows how long they'd been doing it! (To be fair, the pull-tab didn't actually say, "Remove before use.")
Biting the hand that feeds IT
