The warnings are there for a very good reason

Those Tourons are getting worse. Pretty soon you won't be able to drive through the park and have to take tour busses around the park.
Touron--tourist/moron

Some things even duct tape can't fix. While we forge our way with artificial intelligence nobody is addressing natural srupidity.

It is Evolution in Action. I had to tell a teenage boy to get out of a Hotpot Fumerole last ear. His Father was yelling at him but so far away he was inaudible. And then there was the idiot taunting the Griz this year.

We've been trying to save people from themselves for too long. Let 'em be stupid and pay the consequences. Might even drain some stupid from the gene pool.

And the idiots who keep trying to pose with or even pet the bison. :S

You can't cure super stupid or even just plain stupid. Let them learn the hard way then they may remember. Yup

Well, by the looks of the picture, these folks are past the age of reproducing, so that's a plus. Too much stupid in this country already.

And also in Estes Park outside of Rocky Mountain National Park. Tourons (love that term) aren't limited to Yellowstone.

Don't get too close to the Elk

This is how nature weeds out the dummies.

We bought a copy of Death In Yellowstone at the gift shop back when our kids were young and my wife read it to the family as we drove around the park. It was full of valuable lessons of things not to do.