What's the worst experience you've had with a courier company?

Hi scary, The worst sender ever is TNT! My name is mud down at the Exeter depot, every second parcel that I used to send out used to get lost or damaged. Last year I sent three parcels to Southern Ireland to the same customer but only two turned up, I phoned customer service and they swore blind my customer had received it and that their delivery driver remembers delivering all three, not an hour later I had a parcel turn up, it was my customers missing parcel that should have been in Southern Ireland, I was furious and ended up writing a letter to the MD, they rallied round like flies after this, but they didn't get any better!