Fishing Bob told me he mentioned this on the forum...
I was well back in an area on the E Carson river that doesn't get much foot traffic. Matter of fact I neither saw or heard a single person for 3 days. I had already set up camp, and had NOT gotten any kind of food or bear "attractions" out. I was sitting on my bear canister, reading, minding my own business, when I just happened to look up and see mama black bear and two cubs cruising straight for my camp. They had not seen me, smelled me, or heard me. My past experience has been to make some loud noise, and that pretty much scares 'em away. However, this time mama just stopped and stared at me for what felt like forever. The more I yelled the more it appeared she was contemplating what the heck. Mind you I'm also keeping an eye on the cubs because I did NOT want them between mama and me. The little guys fortunately had heard enough and turned back toward the direction they had come from. Mama though, paced back and forth, and finally decided to give it all up and meander off after the kids. It took a LONG time before they left and were completely out of my view.
OK, no dinner at that time. I waited over an hour to make sure all was clear. I fired up my stove, boiled some water, and downed my Ramen in record time. Put it all away, stowed everything in the bear canister and left the canister about 80 yards away from camp.
Another hour goes by. Again, minding my own business, I hear some grunting and look up to now see mama has returned and just crawled over a downed log not 30 yards from me. Headed my way and cubs are behind her. Heck no. I couldn't believe she waited two hours to wander back. At this time it's also sunset and getting dark quickly. Again the routine with yelling, making lots of noise, standing firm and being extraordinarily loud. The cubs turned, bolted and climbed a tree behind them while mama again paces back and forth not really convinced she should leave. Finally (and of course it felt like forever), she slowly meanders away to gather the kids and take off.
I stayed up well after dark with headlamp and whistle at the ready. It wasn't exactly a restful night, but they never came back. All turned out OK, but I think my already grey hair turned completely white.