I’ve never done that either, but we had the common sense to listen to the park rangers and heed the warnings when we visited.
That said, the NPS may want to up the distance on the bison warning.
“That said, the NPS may want to up the distance on the bison warning.”
I just returned from there a few weeks ago, and the published distances are just fine.
This time of year the bison herds have a lot of calves, and the adult bison will give plenty of warning if you get too close by pawing the ground and shaking their heads before they charge.
The problem is the morons who want to “get closer” to get a better picture. These are the same morons who disregard the “STAY ON TRAIL” signs, and step off the boardwalks to get closeups of various features.