Man Approaches Some Bear Cubs, and Is Almost Mauled by Their Mother
This happened in the Great Smoky Mountains National Park on the border of North Carolina and Tennessee. Some guy approached some bear cubs that were crossing a road with their mother.
He either he didn't know or didn't care that mother bears are fiercely protective, and this one started charging him, but then stopped once he backed away. The move is called a "bluff charge" and if he hadn't backed up, she probably would've attacked.