[greymule]

". . . both are out for passing each other." I like it.

That ultra-literal interpretation reminds me of the misconception I had as a kid about preceding versus following runner. I assumed that a lone runner touching the base must be the preceding runner (after all, he got there first), and a runner retreating to that base therefore had to be the following runner. Therefore, if R2 advanced to 3B and then R3 returned to 3B and both runners were tagged while touching the base, R3 (as the "following" runner) would be the one called out. Luckily, I learned the correct ruling before I started umpiring.