Lincoln has been such a great puppy for our family. He is amazing at herding our chickens. He plays with the stray cat that showed up and moved to our home. He has been easy to train with basic commands. Does well with our property boundaries and does not run off... sadly his stranger danger turned aggressive towards a 7 year old boy that was at my home ... I run a business from my home and cannot keep him with the aggressiveness it is no longer safe for him or innocent bystanders with his insecurities... we have two young children he has done well with and he does great with introduced family and friends and has done well with all but one dog he has played with.. It breaks my heart to see him go because there is so much good in him but it is beyond my ability to keep with our home/work lifestyle and constant 'strangers' coming to my home..