Just got the actual rage from a shopper in our local supermarket.
Number 1. Huge queue of 7 shoppers. They called on the tannoy that they were opening a new till and said shopper (who was not even in huge queue) RAN at top speed down an aisle to join the new till queue.
Number 2. She parked her trolley in the queue and then decided she hadn't actually finished her shopping, so left her trolley in the queue with a few bits on the conveyor belt while she spent 10 minutes finishing her shop meaning no-one else could use that till.
Number 3. As we were packing our car up (in a normal space with our 3 year old as they were the only spaces available) she started unloading her shopping into a car in a parent and child space when she did not even have a child.