In 2015 I was flying from Copenhagen to Helsinki with Finnair. I missed the flight after checking in, and they didn't unload my bag, although they should have.

In 2015 I was flying from Copenhagen to Helsinki with Finnair. I missed the flight after checking in, and they didn't unload my bag, although they should have. I was waiting in the lounge as it kept being delayed further and further, with the standard 'go to gate' message. Unfortunately they were also slow at updating the status and it went seamlessly into 'gate closed'. I ran to the gate, but was too late. The staff there seemed surprised that they'd missed me - they weren't even aware they were missing a passenger. The fun then started trying to get my bag back. Copenhagen airport made me wait around for hours for my bag to arrive at the designated unloading carousel, and wouldn't open a missing bag ticket. Eventually they had to concede it had gone missing somewhere after I found the baggage handler who'd unloaded some bags from my flight saying he hadn't unloaded mine. They still wouldn't admit it had flown ahead of me, even as a possibility. When I then got to Helsinki on the next flight, I went to the counter and told them they had my bag. Again they told me there was no possibility they had it, and wouldn't even look. So I gave them my ticket number and left. They found my bag shortly after I left, of course.