I always consider which spot to park in based on the cars around that area - and I usually come back to the car to find other cars parked around me that weren't there before. So all my paranoid parking woes and speculation is for naught usually. That said, I've been parking far away from people as I can, when I can. Unfortunately at my work, the lot is full daily. Best I can do is find a friend to park next to - but after lunch there will usually be someone else in the spot.
Basically - there's very little we can do to control this if we choose to take the car out of its original packaging and play with it.
