Somebody else's problem
My boss, apparently, had a library at the back of the office. I caught a glimpse of the books before, it was all cute and respectable, but today I got to carry them. Books, many of them, and folders - folders fulfilling their duty to their utmost limit. (I think the work of his last eighteen years or so. So years have weight.) Since my boss is on vacation, the lady who is responsible for our office expansion designated me as his next-of-kin. And the books, apparently, had to be carried now as the space downstairs would better be used now as they were paying for it now. (Although the workstations that will take the place of my boss's library won't arrive until August.)
And as I made probably 20 trips up and down the staircase (which is literally in the middle of the office) with my arms full of books and folders, my colleagues (most of them men) just carried on with their work. They were wearing their "somebody else's problem" shield. The only people who were sympathetic were the movers.
This happens on the train. People don't move their shit from the empty seats unless and until you ask them.
Now, the stupid thing about me is that I will move my shit away when I see someone walking up and down the aisle. I will propose to help if I see a coworker carrying stuff. Maybe I wear my somebody else's problem shield sometimes, too, in which case I wouldn't even realise that I'm doing so, but most of the time I see the problem and take it upon myself. And I don't ask people to do stuff for me unless I really have to. I just don't.
Then I get angry.