We got a rescue greyhound in September last year. He was super nervous but bonded with my husband who was home full time until a few weeks ago. He's very much my husband's dog and likes my youngest son too.
He hasn't really bonded with me or my eldest son, has snapped at me once when he had a bone and I was walking towards him (we don't let him have bones anymore in the house), growled at me once when I walked into a room, has jumped up out of his bed and growled and approached my son once when he walked into a room and just now ran up to my son in the kitchen and growled baring his teeth. The aggression towards my son is getting worse. He's 18 and over 6 ft tall but it's still scary -- the dog is a full size male greyhound.
I'm in the process of contacting a dog behaviour person but thought someone here might have advice. Thanks.