I am often searching for my sunnies only to find them on my face.
I went shopping at woolies one day, bought rice for a recipe. The next day I got the rice out and found bugs in it. Went into woolies demanding my money back but when the scanned it the bar code didn't come up so they refused to give me a refund. I made a big scene, demanded to speak with manager and eventually got my $2 back. Got home and found the new pack of rice still unopened in the pantry. Yep I took back a very old pack that I didn't even buy there.
Found a large piece of metal in a pack of cereal. Rang the company and sent them a pic, they apologized perfusly and sent me a whole carton of about 10 boxes of cereal. They couldn't understand how it passed the metal detector that all the boxes go through. I later realised that the metal was actually a broken piece from the oven being stored in the cupbord had fallen in the box. I rang the company and offered to send the boxes back but they said not to bother.