[Lizzie07]

You didn't say when you got him. When I place a dog, I try to tell the adopters as many of the phrases I use as I can, so the dog understands what is being said to him. Many people assume the dog understands everything they say when nothing can be further from the truth. Case in point, "go out" means something very specific in agility, ie go away from me and do the obstacle in front of you. It doesn't mean go out to go to the bathroom, so at my house, I say "go potty" or "let's go potty" and once outside, I chant "go potty" until everyone does. So things really can be confusing for him right now, and that on top of being rehomed a few times already, which is a shame.

Also with rescues, from my own experiences, some dogs come into your house as though they own it the minute they step foot in it, others are more reserved for a little while. Also, your little guy might have been conditioned, or trained to just hang out. Hopefully, with a little more time, he will become livelier. The adjustment period can be one hour for some dogs, one month for others.

If you got him from a rescue, did they have him fully checked at a vets? If he remains unusually lethargic, you might need to have your vet look him over. Find out if the rescue had any bloodwork done and if so, if you can get a copy of the results to have as a baseline.

Good luck with your little guy. And congratulations on the addition to your family.