Travelling in the car along the motorway, Georgia remains unusually silent for quite a while, and then she asks
G: Mum, do you know what police dogs do?
Me: Hhmmm….what do they do?
G: They look for bad people, thieves and all that, by smelling them.
Me: Oh, do bad people smell different?
G: I DON’T KNOW – but dogs can smell them!
So there you are – bad people, you’d better behave – Police dogs can smell you.