Yea... I know that now. Funny when I was driving I did not hear it! The bolts I got from the hardware store were just a tad too short. Plus the wing nuts were too small for me to get a good torque/tighness onto. I have made corrections now.
Plus I wil try using my small point and shoot camera instead of my big heavy digi dsl-like camera.
In case anyone is interested... I used two ladder hooks - to make my impromtu camera mount.