Anyways.....Stumbling across a buried animal or near one, is probably how most people get beat up by a grizzly, as opposed to a predatory attack.

My friend who lives near me was walking around above his house, he smelled something dead, briefly looked around, then he saw a grizzly walking around in the thick bush, within 100ft of him lol. He got out of there quick and didn't think the grizzly saw/smelled him.
There must of been a buried carcass around there somewhere.