We have 2 labs that both have fear based aggression. The black lab was rescued from a farm at 14 weeks and has displayed fear based aggression from the get go. We have tried a dog trainer and a behaviouralist but nothing has ever helped. The younger fox red lab has just learnt by example and she is exactly the same. If a stranger comes into our home we have to put them away otherwise they just bark and lunge at whoever it is, even if it is one of our children’s friends. We live rurally and therefor they don’t see that many people outside our house but if we are ever caught off guard and someone is walking past the dogs have on occasion run up barking aggressively and lunged at the person, yesterday they went as far as biting our neighbour. They were in our front garden not on a lead as we had checked no one was around, but were obviously wrong. We walk them in our local forest which is usually very quiet and they are on a lead but will still try and lunge at anyone who walks past. They do go to a dog day care and have been going for past 2 years and because they know everyone there they are great and the staff can’t believe that they behave the way they do with strangers. In our home with our family they are the sweetest most loving dogs. The neighbour they bit yesterday is obviously livid and wants them both euthanised. I’m at a loss as to where we go from here. Any advice would be very welcome, I’m an emotional wreck over it they are both young dogs and I love them dearly. I’ve been in contact with a few reduces and they’ve all said they wouldn’t take on dogs with any aggression as they’re struggling to rehome friendly dogs with no issues at present.