My Sebastian has become the same way. I recently purchased a gentle lead collar for him for walks. He has progressively gotten bad when walking. He has started to lunge at people walking, on bikes, skateboards etc., barks, goes crazy with other dogs, pulling etc. I have walked him all his life but for some reason he's gone crazy
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I have struggled with the Gentle Lead being mean and feeling bad like I can't control my lil' 6 lbs dog. Like you I have had Sebastian all his life and he is spoiled rotten. He is very protective with me so much so that he barks and growls at my kids when they come close to my bed. ..
The Gentle Lead has worked out GREAT its a miracle. Does anyone else use one?