Has anyone had a run in with any WILD animals?

Last year in Teddy Roosevelt NP the DW was driving our class B. Coming around a curve we saw a herd of 25-30 buffalo slowly walking towards us on the road maybe 100' away. All ages and sexes. The wife asked what she should do. I told her to stop, put the RV into park, shut off the engine and enjoy the view. Which is exactly what we did as they meandered around us on both sides. They went their way and we went ours in a few moments.