Your places of work are providing a coffee machine? And they're stocking it? Someone was nice enough to buy one for the break room, and everyone who partakes in the break room coffee rotates who buys the next can/bag of it.
We also previously had this microwave with 0-9 buttons that set it for a totally arbitrary amount of time. You didn't enter a number of minutes and seconds and press Start. If you pressed 2, you got 30 seconds. 3 gave you a minute. 4 gave you 3 minutes. None of it made sense. We got a new one a couple years ago with a dial on it that sets it for incrementally more time as you turn it. So much easier to understand without a player's guide.