I've been very lucky, never had a problem with either carrier, they always leave the box by the front door (my house sits way back from the street) with nary a scratch or dent!
I live a nice street, everyone but us are homeowners, the guy across the street keeps his $50,000 sailboat in the front yard, with two smaller ones, nobody ever messes with anything. I think they told me the last break-in was in '95 and that was a domestic issue