Hi guys, We recently adopted a Romanian street dog (before anyone says anything - there were no suitable dogs in any of the UK shelters who were available in the time limit we had). She has been in the UK for 15 days and has been with our family for 4 days so far. She is extremely intelligent and learns quickly - she does recall perfectly, wait, cross, down, quiet, leave it and has had no accidents in the house etc already and is the perfect dog with us. However, she has had a rough life until now - she was a street dog for over a year, taken to the pound and luckily rescued and was in a rescue shelter for the next 7 months until we adopted her. At some point she has had her ear cut off (by a human - the cut is too clean/neat to be another animal) and was left with a gaping hole after being spayed which got very infected etc. She had shown no signs of aggression but after having some friends round, we noticed she didn't like the men standing up. If they're sitting down or kneeling down to stroke her she is fine but if they stand she bites their legs. She seems to become nervous and so the 'looking out of the corner of her eye' most of the time but a couple of times she has actually run into another room to bite someone! It doesn't normally leave a mark it's more of a nip/pinch but I need to put a stop to it before it happens to a stranger/child. She is fine with younger men and certain guys (who look young) but seems to dislike all other men. Additionally, she has been receiving attention and then all of a sudden barking in people's faces which is obviously quite scary to new people and as such compounds the problem further. Does anyone have any tips/tricks? The thing is I don't have a man to spare for a day/a few days to train her either... Note: I am unsure on her breed - she is a 12kg (a bit overweight at the moment) dog who seems to be a collie X German Shepherd X something red with silly little legs. We adore her and she has improved the behaviour of our other dog - other than these 2 problems she is perfectly behaved so just need to sort this so we can be a perfect little family.