The Elephant and the Bad Baby is the classic story from Elfrida Vipont and Raymond Briggs.
The Elephant takes the Bad Baby for a ride and they go ‘rumpeta, rumpeta, rumpeta down the road.’ They help themselves to ice creams, pies, buns, crisps, biscuits, lollipops and apples, and the shopkeepers follow them down the road shouting and waving. All ends well as the Bad Baby learns to say ‘Please’ and his mother makes pancakes for everyone.