I'll set the scene... you buy a tshirt on a hanger that is a size 12. But when you get home you realise you didnt check the actual tshirt label, and it is in fact a 14 because you were too busy with a toddler to engage your brain .
Is it wrong to 'exchange' via the changing room by: taking correct size in to try on (with wrong size in your handbag), swap them, then take correct size home, handing the wrong size back, in order to avoid the 10000000 hour queues in the exchange department?
The wrong sized top would have been unworn and still all tags etc.
Having a debate with a friend and cant decide if it's wrong or fine.... so wise mners: is it unreasonable?