Hi everyone, new here as i need help with my 2.5year old lurcher, probably greyhound/whippet/saluki Elsa. She is a rescue that we got when she was about 1yr old to go with our 5 year old Saluki x lurcher Libby. We had some early teething problems with food possessiveness toward Libby but not us that we managed to correct her on. I started her her home training as soon as possible, i am no expert but have had rescue lurchers for about 20yrs. This seemed to go well apart from the usual difficulty's with recall, this i am still improving on, great at home in the garden but not so much on a walk. The real problem started after about 6 months and that is lead aggression, i don't know what started it but i think its really a nervous behavior more than anything. What i can't understand is i thought it may be a socializing issue and to help, as often as possible take her to country/agricultural shows with a lot of people and a lot of all different types of dogs... we always have an excellent day out with not a single noise from Elsa. I can then get home she sees another dog out on a walk and then reacts aggressively towards it, this i try to stop with a check on the lead and a positive NO, if she calms down i praise and treat her then continue to walk, its reading the signs of her getting stressed before it turns into barking, to reassure her there isn't a threat, the stages are a tensing up, puffing out her cheeks ,low growl and then into loud growl and barking if it gets that far,it happens quickly sometimes and is to late to stop until the dog has gone.Not every dog this happens with, if the dog is with someone she knows well and never met before can react like they were separated at birth and couldn't be more pleased to see it. Sorry for the long post but i am at a loss with what to do to the point that sometimes i get worried myself before going out at who we may meet on a walk. I have always had very sociable dogs with people and other dogs and always enjoy meeting other walkers but not in the last year added to the fact that we lost Libby at the beginning of the year due to health problems. Thank you for your time reading my post, any help greatly appreciated.