A nurse had to climb onto the roof to collect the blood for the transfusion! Part of Zipline’s service is very precise delivery into the customer’s mailbox. At Zipline’s beginning, a bug in the code led a nurse to climb onto the roof of a hospital to collect the blood the drone had falsely delivered 100ft from the drop-off point. Luckily, everything turned out to be fine, and the blood was collected securely. @zipline @Keller