Because I have a thing for wrongfooted warning signs (see also yesterday’s item):
At left is a sign near the gate at the Asilomar conference center and resort in Pacific Grove, CA. (PIcture taken a while ago but the sign is still there.)
Below is a sign in Fremont Peak State Park on the other side of Salinas from there.
Each one of these signs marks a huge patch of poison oak, which can release dangerous oils from the stems even when not in leaf. By comparison with which, who’s afraid of a little old mountain lion?