Not on this last vacation, but a few weeks ago we went to my parents' house and visited our family farm.
We have a small herd of Longhorns, and they are delicious! Here is my Uncle Jay being the Bull Whisperer.
We were able to get pretty close, and we drove up in trucks and got out and walked around a little, with the kids on the back/roof of the truck. Not all the Longhorns are agressive, but they can inadvertently cause some damage just turning their heads around.
Here's the origin of the post title, if you haven't seen it yet.