In this video, Dean Bog takes an entertaining look at "Pittsburgh's weirdest tradition", where residents place a chair on the street in front of their house to claim a parking spot and keep others from parking in it. The maneuver is technically illegal, but:
We don't need official signs, we don't need to get the cops involved, we can just understand that if you're placing a chair in a spot, you're asking everyone to respect it as your own.
Bostonites do this during the winter with cones and sometimes chairs — the logic is: if you did all the hard work of shoveling out a spot, why should someone else get to park there?
Bog is also doing this series of videos where he reviews the neighborhoods of Pittsburgh. (thx, james)