Lord knows what I'll be like if I ever get dementia, God forbid. When we were clearing the flat of OH's old aunt after she died, we found a lot of way out-of-date tins. But since they looked fine, no rust or sinister bulges, we took them home and used them - no problem. I absolutely HATE wasting food and do get cross if I see anyone else wasting it, so I dare say I'll be the despair-making old mum rescuing rotten mackerel from the bin, too.
How did we manage before use by dates, right?