At work we have a huge cooler of free beverages. We also have non-dairy creamer and half-and-half for the coffee, which is also free. Some people think it's ok to use just a bit of one of the cartons of milk for their coffee and put the rest back.
I say this is not ok. If they want to do that, the rest of the milk should go in the refrigerator, not the cooler.
I'm sure they all think they're part of some milk community and that five or six people will share a carton. If that's the case, why is there ever more than one carton? I see, they want to share, but only if they get to be the first person to open the carton.
I love Sam's "whatever" glare.