> With the wisdom of hindsight, I should have said, "Hold it. Wait a second. I'm riding on this spacecraft. Just go out and replace that tank."

That's crazy. I didn't realize the tank was acting funny before they even took off. To me, the risk-adverse non-astronaut, that seems like something that would've triggered big ominous "DANGER" signs going off in my head.

I guess that's the benefit of hindsight, though.