This is as it should be.
Backward slamdunk
This is as it looks like when you don't know where the basket is. In this example, the player obviously found out that the basket is behind him while flying...
This player forgot his glasses, so jumped too early and had to fly a bit longer.
This picture was taken in a secret training camp with the famous BC Olympiakos Zürich somewhere deep in the middle of Switzerland. Unfortunately, the fotographer was a bit too late (or the player a bit too fast ).
Here you can see a well known computer science student from Zürich at a dunking contest in Paris.
Well, I think I have to explain why I smashed the ball on the rim insteat through the basket on this picture... This situation is after the actual contest. My later (now former) girlfriend forgot to take a picture during the contest and asked me to do it again. As a gentleman I agreed. So I wanted this to be a very special photograph and tried to smile in the camera during the dunk. Uhm, well, you see the result: No dunk, no smile, no very special photograph. Still, she was impressed enough to be my girlfriend some weeks later which was the most important thing of this trip to Paris anyway.
:-)