Rich and I were taking ski lessons at Sun Valley. Our instructor brought us to a halt on Lower Warm Springs and told us to unbuckle all the buckles on our boots. He emphasized that all of the buckles had to be completely loose, no chance of clipping in. As we complied, he told us that we would be skiing the remainder of Warm Springs boots undone. The uniform looks of incredulity led to, “what! That’s impossible.” Our instructor explained that if we had the correct body position, we did not need boots at all, “the boots are there just to keep the skis from running out from under your feet.” Off he skied expecting us to follow, which we did, sort of … a lot of cold, wet feet from walking out of our boots.