After wetting myself i would have started firing away. You have to do all you can to avoid encounters like this and you should try to avoid shooting a bear in defense but sometimes stuff happens and it is unavoidable. Its unfortunate but I think the hunter did the right thing.
If you've got short, stubby fingers and wear reading glasses, any relaxation you would normally derive from fly fishing is completely eliminated when you try to tie on a fly. ~ Jack Ohman, Fear of Fly Fishing, 1988