That is really horrible to think about.
I once stood eye to eye with a full grown male deer, we were separated about 10 yards on a single track (mountain bike trail), and we just sorta stared at each other. Maybe the deer thought the same thing I was thinking, are you gonna kill me right now?
After about 30 seconds of a staring contest, the deer scooted off the trail, into the woods. The deer had a lot of nerve walking on a mountain bike trail! :) On a serious note, at no point did I ever think, maybe I could pet this thing, or take a picture.