When I listened to David Watson’s arrangement, it made so much sense that the three little girls were shoplifting or something. We have added some policemen though they are much closer to the Keystone cops than Gilbert’s Penzance brigade.
Here are two pages from the sketchbook with some additional drawings…
animate-tim.com 
don’t understand all this. are you making a film? I thought the 3 little maids was from the Mikado and the policeman from Pirates of Penzance. There is not a point at which the two meet, even in something like the 60s aberation, “Pineapple Poll”