We have taken on a rescue greyhound, aged 3, and he's been with us for 10 days now. Without any particular problems.
But then this evening he growled at me when I went in the lounge where his bed is, twice, then did the same to my partner - actually standing up and blocking his way into the room.
I'm shaking and frightened. We've just taken him for a walk round the block and left his muzzle on.
Until now he's been happy, although today he did seem a bit out of sorts. I don't know if we've stressed him out somehow and didn't read the signs or if we've done something wrong / stupid that's made him think the lounge belongs to him.
Advice would be very very welcome. I'm genuinely frightened right now of a dog who's been gentle, accepting, contented up till now. Thank you.