There are many stories, but I picked this one to share.

One day as I was driving north on Flood Avenue, I came to a stop at the intersection of Flood & Robinson in my City car. Shortly after coming to a stop, I felt my car being nudged slightly forward. There was no jolt from impact, but just a nudge where contact was made. Immediately after that, I felt my car being nudged forward again. I was annoyed and thinking, what is this person doing behind me? As I turned and looked back, I saw Steve smiling. He had ever so gingerly inched up to the back of my City vehicle without causing any damage and nudged the car forward twice. I made a gesture, smiled and then proceeded on my way. It was a very carefully and skilfully executed joke that only Steve could do.