Last year I clipped a garbage can that was into the road about a foot. It was on a long straightaway that I ride almost daily so I wasn't paying a lot of attention far up the road. Had my head down,doing what passes for a strong effort from me, and hit the handle/hinge of this big plastic trashcan. It must have been pretty full as it only made about a quarter turn but it left a nasty bruise on my upper right arm.