I bought a DVD burber for my pc a few years back, I remeber ordering it at exactly 6pm, didn't think I'd get it till two days later. Went out the following morning to put petrol in car etc. Got back and there was a card through my door saying there was a package waiting for me down the sorting office and it would be ready within 3 hours.
3 hours passed, I went down there and they couldn't find it, wasn't amused either but I waited, eventually they found it, 4 days later, postie had only gone and put it in the safe and not told anyone else.