Grrrrrrr

Perhaps I'm mistaken, but I consider the following behaviour to be Bad Form:

When at the supermarket checkout, leaning on the belt thingy behind your own shopping, thus preventing the next person from unloading their stuff;

Once your goods have been rung up, standing examining the receipt then realising that you were too damn stupid to pick up the right buy one get one free offer, requiring an assistant to run around and do your shopping for you properly and holding up the queue;

Waiting until all this time has passed to fumble around counting out all your loose change.

Some of us were in a hurry, you feckin eejit....