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That's the thing B00 that is exactly what she did.
There is a very old lady who is unfortuantely really smelly (if I see her in the PO I go back later on when she's gone). When I got to the checkout she was at the front with about 5 people behind her. This Co-op nazi took her money, smiled goodbye, and then when she had left proceeded to tell everyone how disgusting she smelt and how she'd now have to get the air freshener out.
If the poor woman could have heard her she would have been mortified.
I'm still fuming and this was in Monday.