I've mentioned before that my employer reuses a lot of material, especially art and tables. (They've been treating a lot of tables as display art.) This afternoon, looking at a book we're going to reprint, I noticed that one of the entries in a table was a problem. I've looked at that table a dozen times at least, and not registered that problem.

The tendency is to think "How did I keep missing that?" rather than "Aha! Got one." Fortunately, my boss thanked me, and we are going to fix it for this reprint, another reprint (where I let it past a week or two ago), and on the art server for future use.

I'm not the only person who missed this, obviously: they've been using this table longer than I've been working here. And I am the person who caught it, and will get some (small amount of) credit for doing so.