We had a box stolen off our porch. Joke was on them, though -- they carried that 40 pound box a block and a half before opening it up to discover it was nothing but season brochures for my wife's theatre company. I retrieved it with a wagon, after a dog walker let us know he found the box. Thankfully, they didn't drop it in the nearby creek.

It's not that we're in a bad neighbourhood -- but we are on a street that gets some foot traffic from people passing through. Mostly it's kids heading to/from the high-school at the end of the road.