Yep, hog nose are good snakes, however the scale pattern can cause most folks hearts to skip a beat or two If seen in the grass. .
And then it doesn't help that they often will spread out their necks, flatten their head and HISS! Big show, bigger bluff. Perfectly harmless snake.
This one put on a big show for me:
People not familiar with them either run or kill them on the spot.
They are one snake that have incredible diversity in pattern and color. But all are harmless.