Changing Babies

At the swimming pool, Duncan's mother was drying her hair. In the corner of the changing room he saw something he hadn't seen before: it was a big red plastic thing, on legs like a crib. He nudged his mum and pointed. What is that for? he shouted. She switched off the dryer, Whats what for? That. He pointed. Oh, it's for changing babies, she said and she switched on the dryer again and Duncan is t...