@Blondesjon I’m not just going to leave it like I didn’t see it, just let the whole mess get worse, let it start dripping all over the floor.
And I really don’t think messes like that get left because other people clean them up. That may be be true about coffee cups left in the sink but not the kind of mess described here. This is a hypothetic question anyway but it asks about whether I would clean up the mess in my company break room, not an elementary school cafeteria. If someone manages to get to adulthood and hold down a job and hasn’t learned that if you spill grapefruit juice all over the table in the break room that you are supposed to clean it up, well, my refusing to clean it up myself isn’t going to change that. Anyway, I’m just that kind of person. I’m not going to change now. I put other people’s shopping carts back too, particularly if some jackass has left the cart in one of the handicapped spots. I can’t not do it. I doubt that any person who doesn’t care about leaving a cart in a handicapped spot is going to be reformed by my ignoring it.
Edit: and what @tranquilsea said. :-) That’s the most reasonable and rational approach, I think. It should be cleaned up, but addressed at some point so the idiot doesn’t do it again.
Edit redux. Then again, maybe what @JilltheTooth said. :-) Maybe the person didn’t notice and no need to make a big office stink about it.