Generally, it's not random bears wandering in and out of the Portal. It's the same bears, and the rangers tend to know them, according to the folks at the station in Lone Pine. So these bears get a lot of practice at what to do and what not to do, and where to find food. Even leaving things like empty water bottles in your car is considered a no no, because the bears have learned that those bottles usually mean food is nearby, and will try to get in your car. They weren't ticketing for that last year, but we saw three or four cars with yellow info flyers about it last year in the parking lot.
