Most of the time, I am the one sweating and working hard, so I am fond of the days when someone other than me does the workout. And James McGrath works way, way harder than I do. McGrath is a Seattle-area resident and competitor on NBC’s “American Ninja Warrior.” Hanging out with him is humbling, to say the least. I wish I could do any of the obstacles he faces on the show – it airs starting tonight ! – but I couldn’t get my mind wrapped around the salmon ladder, let alone make an attempt. I’ll let James show you how it’s done in the for this week’s Fit for Life column in The Seattle Times.