In Sequoia Nat'l Park three of us were sitting around a campfire. My wife sensed something beside her, when she looked to her right there was a brown bear just a few feet away from her. All three of us got to our feet and move to put the fire between us and the bear. I yelled and clapped my hands and the bear took off running right towards the open door of our trailer. Luckily the bear turned and headed down the road.
In Yosemite we were sleeping in a tent and we could hear a bear walk right by our tent over to the metal food box. It tried the lid on the box to see if it would open and then went on to the next campsite.