I knew a couple who were the proud owners of a new Velocity. One day
they were taking off when suddenly the door not only opened, but
departed the aircraft. They made an immediate (and uneventful) landing,
retrieved the door, and reinstalled it following repairs. Dunno whether
a change of underpants was necessary or not.

One time I had a cowl flap depart the aircraft in flight (with a bang).
It seems the hinge pin had broken it's safety wire and worked it's way
out of the hinge. The plane flew no differently with it gone - so I
continued to my home airport, which was not far away.

Another time I had a cowling access door open part way in flight. One
of the two latches had failied, but fortunately the other one held. The
door bulged outward and did cause the aircraft to yaw to the left
somewhat (but nothing serious). I landed at the nearest airport, and on
the advice of a mechanic there, effected a temporary cure with duct
tape. That got me home with no further difficulty.

David Johnson