Your dog is new so he is still in the adjustment stage. I suggest you give him more time to adjust to his new world. Also, talk to your daughter and wife to not give up to the dog during this stage. Let them be the one to give him water and food. Let them take the dog for a walk. Simple bonding moments that will surely capture your dog's heart.
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Nancy, newbie yet soon-to-be expert about Bloodhounds training