I was riding a trail on Friday (Monon in Indianapolis). There was this family riding ahead of me. Dad was on a hybrid pulling his son with one of those tow bar things. Mom was right behind pulling her daughter with one too.
Just before I passed them, mom looked back and I made eye contact with her, so she knew that I was about to pass. As I went around, her adorable little girl (think Campbell's soup kid), looked at me with this very serious scowl and said, accusingly: "On your left, Mister!" I said "You're right. On your left."
I guess this 5 year old is very serious about her trail safety!