Little pitchers have big ears

In the car on the way home from the zoo, Trudi mentioned that we'd better work out how to use the child lock on the car doors. One day one of the girls would have a go at opening a door. I agreed, and theorised that there might be a latch thingy on each door that disabled the inside door handle. Must work that out one day.

A few streets away from home, Hazel opened her door.

Trudi stopped the car, I ran round and closed the door, and we got home with no more door-based experiments. Once the girls were napping, I read the car manual and went outside to initiate Child Lock.