Neither have I!
Keep the prop guards on, when flying indoors. Choose open spaces when flying outdoors. Don't worry about crashing, it's a light drone, won't be affected (as long as you don't do stupid things)!
It’s an awsome small drone and it could forgive you any committed flight error .... take yr time and when you get in troubles, leave everything sticks or whatever and it’s gonna wait for a next command steady INDOOR, cause his bigger enemy gotten is called windshear....!!