Beechcraft Baron (58) (N159TH)

The co-pilot's door in the Baron is prone to open in flight. This pilot did the right thing: returned calmy to the departure airport, closed the door and was on his way. Well done. Fatal accidents have occured with pilots loosing control of the airplane. Other than a lot of noice in the cabin, some buffeting on the horizontal stabilizer the airplane just flies fine. How do I know? Happened to me as well.