It's right in the rule book, Blue . . .

[greymule]

"But blue, what reason would he have for missing the bag when he's the fastest runner out here??"

I heard basically the same thing a few years back. "He's our fastest runner! Why would he leave early?"

I also remember this one when I called an out as F6 intentionally dropped a line drive: "But Blue, he's not a good enough fielder to drop it on purpose!" (Actually, they might have been right about that one, but it looked intentional.)

I have also heard that same odd interpretation of the IFR, that the runners have to wait for the ball to come down even if nobody catches it. I've also heard another variation: that even when the ball is caught, the runners are free to leave the moment IFR is called. As if calling IFR constitutes the fielder catching the ball.