Nugent, who is in charge of timing hang time, called it a beautiful hit, almost a once-in-a-lifetime thing.

He and I talked about how it could be a once-in-a-lifetime thing.

"Everybody talked about how that was maybe the greatest single season of all time, a once-in-a-lifetime thing," Glavine said.

"That's why you call those seasons once-in-a-lifetime things, because it ain't going to happen every year."

It's one of those once-in-a-lifetime things that you don't realize until later on.

No, for most citizens, even a full audit is a once-in-a-lifetime thing.

"I think we're going to be looking at it as a once-in-a-lifetime thing," Pritchard said.

So this became a significant thing in my life, but it might be a once-in-a-lifetime thing.

She'd been fascinated by the eclipse, but not just because it was a once-in-a-lifetime thing.

But then this was one of those once-in-a-lifetime things, wasn't it?