I like watching the persistence of small children. When # was this age, they had a wooden porch about two feet high. She wanted to get off the porch and go to the fence. Every few minutes, she would try to make a break for it and we’d have to catch her before she ran off the edge. She would come from different directions, be facing somewhere else and suddenly turn and run.

# is similar in this determination to explore things and places that adults try to keep him out of.