A non-dangerous, but startling confrontation.
About a hundred years ago (really ~50), I was driving trucks for a logging company in the back of Maine. One evening, I had to go out an haul in the last load of the day. (Daylight lasts a long time that far north.) It was a long climb up to the driver's seat, but I got somewhat tired and closed the door and settled into the seat to come to the sudden realization that someone - at least a face - was staring back at me though the windshield. I jumped a bit and then sorted out that it was a cow moose that was standing in front of this Mack - Therodyne and looking at me and probably wondering what I was doing. One just does not expect a face that high in the air.
Matt