Have been receiving post for someone else, but with our address on it. Wrote 'not known at this address' on the front of the letters (there were two of them), and put them back in the post box. They were re-delivered the next day, so I put them back in the post box. Once again, the postman re-delivered them. So I got fed up, shredded them, and filed them in the recycling bin.
This morning, some post arrived for the people who lived here before us. Again, I've written 'Not known at this address', and put ready to take to the post box. DH thinks I should just bin it, as it'll only come back again. AIBU putting someone else's post in the bin?