Feeling pretty good after Monday's not very challenging ride, so figured two days in a row on dirt might work. Expanded the neighborhood loop to include the Lois Green Conservation Park. Trails there aren't the least bit challenging but at least it's dirt. Felt pretty good the whole way. No unhappy knees. But ... managed to stumble off -- not exactly a fall, more like a clumsy, falling dismount -- about mile 18 and bash a shin pretty good on some rocks. Felt pretty damn stupid and then realized it hurt. Got home without incident, but have a pretty good gash. And bruises. I need to figure out how to ride dirt and not keep hurting stuff. Need to suck it up and walk the rock gardens. Take no chances on stream crossings. Gotta just be the old man I am. Sigh.