Yep, I agree with Mike. I had a friend who was a park ranger in bear country and he had some amazing photos/video of bears literally tearing into cars. And I don't mean convertibles. These were fully metal cars, with windows
up and doors locked. They have amazing power.
Camping up in northern Minnesota, one never brings food into one's tent. Even a candy wrapper can keep you up at night thinking/knowing the bears can smell it. In that case, you either store your food by hanging it from an outer tree limb (one too thin for them to walk out on), or by placing it in a (very) sturdy metal "bear box" (some campsites provide them; I've used them when sea kayaking/camping).
Of course an egg is going to be safer than a tent, and I don't think there are too many people (me included) who are going to be so careful as to never bring a bit of food into the camper, but they're not an "invincable" hard shell.
How do those who regularly egg camp in "bear country" prepare for it - I'd like to read others' experiences. I've never had more than a tent in those situations (or a boat