I kind of feel sorry for this particular guy. He was apparently brought in as a stray. Someone adopted him and kept him for all of 4 days. Then they thought he was too big and brought him back. I need to finish fencing off my yard first I'm afraid. I have about an 8 foot section that's unfenced.
Speak to the ppl at the shelter and see if they will at least not put him to sleep before you can get him if no one else does.
AFA the reccomendation of a lab... That would be a good choice if you are willing to put in the amt of time and effort into its excecise. They get bored easily and need a "job". With being out of the house 9 hours a day, and adult dog, and a less energetic breed would probably suit you more. The last thing you want is to get turned off to dogs because of shenanigans that could have been prevented if you had the proper match to your lifestyle.