One of my favorites from our daughter Leah was when we were standing among a group of neighbors and she looks up at Brad and says, "Daddy, are you my daddy?" I don't know what the neighbors thought, but it was funny to us.
Another time we had some friends over for dinner and our kids were upstairs playing. When I went to check on them I found a pile of dark hair that didn't belong to any of my kids. I picked it up and went and informed my friends that Emma was cutting her hair again. (She had been in trouble for this quite a few times before) They called Emma downstairs and she said, "I didn't cut my hair, William did it." So we called William downstairs and he says, "Emma told me to." Then Emma says, "Well, you said I couldn't cut my hair anymore, but you didn't say William couldn't do it!" We cracked up. It was very funny. Poor William didn't know he'd been set up. They were only like 4 at the time. It was cute.