No brakes

Got my mom out for a short park walk today. No complaints of foot or knee pain along the way, but no brakes, either. She gets going like a runaway train. As a downhill bit approached, I took her arm to slow her down, but that didn't work. I kept hold of the arm but her body kept going. Safely back on flat ground, I took this picture. She was saying, "Hi mom, hi dad, hi grandma." And then, after a moment's pause, "Oh, there are no grandmas."