So my roomie (Keely) and her parents and I had gone to a Bed, Bath, and Beyond store. Just after our car pulled up, another one pulled into the space on our passenger side.
Keely and her 'rents had gotten out of the car and were doing something at the trunk, while I crouched in the open passenger door to give some water to Maggie, the dog. I had my back to the other car. After a couple seconds, it occured to me that I might be blocking the driver's door to the other car, so I looked behind me and sure enough, I was. The driver-lady had the door partway open and was STARING at me through the window. I quickly stood and said, "Oh, I'm sorry, am I blocking you?"
Driver-lady: *gets out of her car, SLAMS the door, does a tight-lipped little nod and says "YEAH." and stalks off toward the store.
I called, "I'm so sorry!" after her and I heard her mutter to her companion something about rude people.
Honestly. I said I was sorry. If she had given me SOME indication that she was there, cleared her throat, said "excuse me," said SOMETHING, I would have moved! It's just that simple.
As Keels and I walked to the store, she said (loudly enough for the lady to hear) "She didn't have to be such a bitch about it." Heh.