You just got back from ASDA?.
Seriously though, I couldn't agree more especially with idiots who stop dead in their tracks when walking.
I tend to find that sticking my hand in their trolley and punching their box of eggs tends to relieve the stress caused by these morons. Crunching their packets of crisps or ripping their medium white sliced loaf apart also works.

A last resort is to fill their trolley with anything you can get your hands on from the adjacent shelves..............................hope this helps

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