I rubbed 'shoulders' with a rubbish truck once, not much fun. He was sitting in the middle of a double mini-roundabout (evil things them), and I pulled up on his left, thinking I could get ahead of him, but he was too close to the curb, so I just stopped halfway up. As he pulled away he moved towards me, which scared the bejazus out of me, I tried to lift myself out of the way but nearly fell over the curb, but the whole incedent did no more damage than somehow popping the barend out of my bars.