 If a call came in for the officers the blue light on the roof would flash.The St John logo also appears on the windows of a hut dedicated to first aid at a Church Fair shown in an episode of "Jeeves and Wooster".In 2016, the UK St John Ambulance organisation, via its website, launched a campaign for baby CPR featuring a song by animated nursery rhyme characters, including Humpty Dumpty, Jack and Jill, Incy Wincy Spider and The Cat and The Fiddle.