During the shuttle days, absolutely everything we did was choreographed down to exactly where I'm going to put what handrail I'm going to put my toolbox on. I mean, everything is all figured out in advance. But nowadays, and sometimes on space station, when I was there, when things break, you don't have the luxury of training. If we're going to do a shuttle mission, we're doing a really complex spacewalk. We'll do everything we're going to do in space at least ten times in the pool first. But these days, you don't have that luxury. Something breaks and you brief it. You talk about it, you have some PowerPoints, and then you're out the door and you got to go do it.