Parking is one of those things that is always going to cause issues when limited spots are of any concern. People just don't know how to behave rationally when scarcity of resources is at hand, and the monkey part of their brain takes over. Still, when you have your own driveway, even if it's shared, you'd sort of expect that your side of it would remain accessible to you (and you alone) without issue—unfortunately, inconsiderate neighbors mean this is not always the case. In this case, these n…