[aMINIbull]

Guess I'll join the chorus.

I too have had this happen once. Since I didn't notice it until the passenger door was already closed (no damage) I'm not sure of the raising/lowering sequence that preceded this incident, but I think its entirely possible that it wasn't raised all the way as was suggested. This might also explain why there was no exterior damage to the car or window.

I only had to partially lower the window then raise it again to get the window to operate properly.

Something to look out for, but right now it seems fairly trivial (unless of course I crack the A frame. Yikes!)