Arh, she looks so gentle too, bless her.
I find my eldest Black lab can be nervouse, particularly if some one raises thier voice, not sure about guns though as she appears confident, my point is, she is never told off, shouted at or badly treated and so I cannot understand why she is like it at all? If I tell one of the others off, say for eating something they shouldn't, she runs off and needs coaxing to return!!!!!