Rude parking lot behavior:
(1) Shopping cart abandoners. They push the cart for three miles inside the store, but cannot push it 50 more feet to the cart corral, and instead shove them up on islands and between vehicles. C'mon man, make life a little easier on the guy who has to collect all these carts.
(2) Fire Lane parkers. The folks who think that because they are only grabbing a few items, that parking in the fire lane is therefore acceptable. More than likely, it is also a luxury brand vehicle, thus reinforcing the stereotype of the "my

doesn't stink." C'mon man. I am sure you can make it the extra twenty yards if you go all in and try as hard as possible.
(3) Middle of the lot walkers. Sure pedestrians have the right of way, but that is for
crossing, not walking down the middle of the throughway like a vehicle moving at glacial speeds. Same goes for the folks how take the shortest distance between two points which means they are not crossing at 90 degrees, but more like 15 degrees. C'mon man. Burn the extra calorie to move it along and walk the extra five steps it takes to cross at 90 degrees.
(4) Backout procrastinators. When they see you are waiting for their spot, and they decide to text, adjust mirrors, seats and belts, find something interesting on the radio, and then check their shopping receipt, before putting it into reverse. C'mon man, show some urgency and courtesy.