Back in the 60s, I know I'm old, some friends would go camping. Every day the bears would come to the campgrounds,go straight to the garbage can, then leave. They followed the same trail every day, same time. One of the party wanted to find out what would happen if something was in their way so he stood in their trail. Omnevbig bear walked up. Stood up and swatted him out of their way any followed their routine. Some people are really stupid