Here is a photo I took on a trip to Yellowstone. I was in a van and there walking on the side of the road was as close as I ever want to get to a bison.
Well, maybe a better shot as we drove alongside:
Here is the rest of him as we kept on driving:
I can't imagine why anyone would open a window to get a better picture of something this large, yet folks do get gored by these animals every year when they get OUT of their cars. DUH!