Someone came in & helped themselves to a bunch of firewood that I'd brought into the house a whole bunch of years ago. It had to be someone who knew us, knew the house was empty all day, and knew that the dog inside wouldn't bother them. All they took was firewood, despite guns, cash, and other marketable stuff throughout the house; some in plain sight. There was a pile of wood behind the house, as well; enough that someone could back up to it and take off with a pickup load and I'd never have noticed, but it wasn't dry.
I called the cops only to let them know that someone was working the area, in case something of real value came up missing. State trooper showed up and we "took the tour". As he was leaving, I mentioned that I might put a sign at the end of the lane..."If you need something, just ask me; I'll probably give it to you...but please don't steal from me". The trooper's response: "If the b_____d comes back, shoot him"!