Cargo door left open: Dog escapes from 737
According to this article the cargo door of a 737 operated by Blue Air (flight from Rome to Bucharest) was left open with a dog in the cargo bay. (not a stray dog, it was travelling as cargo)
The 737 started taxiing WITH ITS CARGO DOOR STILL OPENED, the dog escapes, and its owner, who was looking through the window from the cabin, sees his own dog run away from the plane!
Eventually he is caught and all is well...
--How is it possible that a 737 departs with its cargo hold still opened???