From the ArcaMax Publishing, ArcaMax Publishing Newsletter:
http://www.arcamax.com/news/arcapub/s-565388-288597
Three nature lovers went for a drive into the mountains one day to see
if they could spot some bears. They wanted to take pictures of bears
for their photo album. So they drove along an old dirt road until
they entered the trees. As they rounded a curve, they spotted a sign
that read: "BEAR LEFT."
So they turned around and went home.