Bears and dogs in the High Peaks

Just learned that bear activity is apparently up in the Lake Colden area. Has there ever been a report of a bear actually climbing into a lean to with people in it? Do dogs play a part in attracting or discouraging bear activity? I ask because there are way more packers who go to Colden without dogs then do, so I was wondering if that factors in at all. I realize a dog doesn't stand a chance against a bear, I am not talking about attacking it or anything. But I was wondering if a dog's scent might cause a bear to go around rather than through simply because it is a changed condition for the bear. I have had two bear incidents at Colden over the years and in neither incident was I threatened at all, but both were very close encounters. The first time, many years ago my wife and I had our your lab with us. The bear walked right past our lean to without stopping, but got everything the people next to us had. Our dog slept through the whole thing (we didn't hear anything while the bear did his thing next to us, we found out about it the next morning). I will have my bearvaults with me.