Wildlife trade Puns

http://images.roadtrafficsigns.com/img/lg/K/Watch-For-Rocks-Sign-K-6417.gif

http://images.campgroundsigns.com/img/lg/K/watch-for-wildlife-crossing-sign-k-0324.png

I think, "Hmm... That's an interesting trade"

I kept seeing signs on the highway that read, "WATCH FOR ROCKS AND WILDLIFE," and kept thinking to myself, "that's a bizarre trade."

Surely I'd have some eye rolls if I wasn't driving alone.