When I lived in Jersey, there was a blizzard that slammed us with more than three feet of snow within some insanely short amount of time. The downstairs neighbor sat in her parking-spot-reserving-lawn chair with a shotgun in her lap.
Yeah, no one else was gonna touch that one.
You figure, though, if you're gonna *sit* out there and wait for your roomate to return, the shotgun would be unnecessary.
Said roomate showed up just a few minutes later, sans incident.