I think the joke goes as follows, 'How do you tell the difference between a black bear and a brown (grizzly) bear? Answer: When you climb up the tree the black bear will follow you and the grizzly will just push the tree down.' In other words, you are toast! or just petit fors.
This is a black bear in the San Gabriel Mountains. One of the contracted workers who is re-building roads washed out from the spring rains, watched this bear walk down the road in the bike lane (are bikers tasty?) and then turn into the day camp grounds where families enjoy weekend lunches.