You didnt' REALLY do that, did you?

Here is something I DID do: noticed some dings on the door frame, driver side, when the door is open.

HMMMMMMMMMMMMMM, how the hell did they get there? Then it hit me, I was opening the door, undoing the belt, and letting it fly! I quit that months ago, no dings since. I take the belt off BEFORE I open the door now.