There’s a trail near me called Anklebreak, a steep shortcut. One day when I went hiking in the area, there was a sign announcing “RATTLESNAKE ON ANKLEBREAK TRAIL.”
And, as an aside...
I have hiked the Mist Trail several times, and loved every minute.
As told to me by a Ranger, the Mist Trail is the most hazardous of the many, many hiking trails in Yosemite. The biggest reason? Fools (there is no other descriptive) choose to swim in the quiet-looking fore-ponds to the Vernal and Nevada waterfalls.
My most recent hike on the trail, some years back, I noticed lots of divers looking for bodies beneath Vernal Falls.