I'm going to leave a family member's dog tied up outside their house alone.
That's terrible! Why would you leave a dog tied up outside?
I hate it. The dog will be happier without us.
Leaving a dog tied up outside and alone is a terrible idea. Dogs are social creatures and it's cruel to leave them tied up and alone. Sometimes people will call animal control if they see a tied up in a yard.
Still a good idea. I was going to feed and water it though.
It needs warmth and contact with others to be a happy and healthy dog. You need to do a lot better job taking care of it.