When I was working for a private service we did a 911 rollover with an engine crew. As we left the scene 2 firefighters were helping back me out of tight quarters. I hit something solid as I was backing up. I got out to check on it, and they had backed me into a fire hydrant. Just as I saw, the LT on the engine got on the PA and said "That is NOT what it means to hit the Plug" I almost fell over laughing.