Kids are interesting beasts. One minute they lack a certain skill, and the next, they suddenly possess the skill. For example, last week my daughter could not walk. She could stand on her own. She could pick up items and inspect them while standing. But when it came to traveling, she would plop down on all fours. She didn't really show an interest in walking either. Then without warning, while hanging out in the bedroom, she stood up and took a couple baby steps like it was no big deal...