I was looking though my photos today, and found this picture from summer a couple of years ago. It's taken on the island Jøa, near by Namsos, Norway. I was walking in the mountains with my father, when this cow started following us from the farm at the bottom of the mountain. We just managed to make it turn, as the terrain made it impossible for the animal to walk any further.
I used my Nikon D3100 (with a Tamron lens, though...)