My Dad's bear story

A long time ago, my Dad worked on the Canadian Geographic Survey, which took him into the Rocky Mountains.
He told me this story about it.
Dad: I was working with my coworker all day, and then we returned to camp and started cooking dinner. The smell must have carried on the wind, and attracted the wildlife, because I turned around, and there was a full grown Grizzly Bear in the middle of the camp!
Me: :-O What did you do?
Dad: I picked up some shit, and threw it right in his face!
Me: uhhhh... where'd you get the shit?
Dad: It was right there in my pants!