Alpha looks like a great dog- really fitting in. My dog is like that too-there's hardly ever any need for a correction but they must be very gentle- she had many years before I adopted her, so who knows what she went thru, much like your dog. I just adopted a second dog actually, & she's still healing from having a LOT of dental work (most of her teeth out due to neglect)- her owner said they were 'moving' & left her at the shelter- maybe they lost their job or something, but they clearly had trouble affording her to begin with (judging from her teeth). She's a sweet girl though that seems to get along with my other dog- has some understandable separation anxiety though. She "never barks" (according to shelter & my own observations) until I went outside to mow the grass the other day, & I could hear her barking the whole time in the house, protesting. And when I took a shower, she laid on the bathmat (!) Did she really think I might go down the drain to escape?Silly dog...