I am sitting working in my kitchen, my car on the drive, so obviously IN.
My dog is, fortunately inside (she is a puppy still): most of the morning we let her play in the garden. Suddenly I look outside and see two BT/Openreach men walking through my garden to get to the telegraph pole where their wire is.
They left the garden gate wide open. If my pup had been in the garden she'd have been out like a shot and on to the road.
Aren't they supposed to knock on the door if they want access to your garden? Occasionally I pop out for ten minutes and leave her in the garden alone, if I'm just posting a letter, for example.