They don't know you are the Bear Whisperer and that you talk Bear.
You don't have to run fast when you can talk to the bears and tell them someone else has better treats in their pockets. or Pot it is Humboldt. LOL
I was elk hunting in Colo many years back. As I topped a grassy knoll I spotted two bear cubs off to my left about 30 yards away. Within seconds I spotted mama bear off to my right about 40 yards away. I was between the two.
It was quickly an "Aahh shlt" moment for me when she rose up on her hind legs. I took my rifle off my shoulder, loaded a round and slowly backed up down the hill. Fortunately, that satisfied big mama as she likely decided I was no longer a threat to her youngsters.