..and there’s a modern twist; I can remember sitting in the pub 6 or 7 years ago and one of our neighbours pondering why someone would have “drilled a little hole in the wall of my shed” – it subsequently turned out that several buildings around the village had been ‘inspected’ by thieves with an ‘endoscope’ type camera.. ..in a couple of cases they’d used a drill to relieve an existing crack by a door, leaving sawdust on the threshold..
..so the sudden appearance of unexpected holes, and / or sawdust is a warning to be heeded..