What do I do about my sister's rude boyfriend?

Well, it worth a try. I dont know how my sister will react though. Shes very pretective over him :/

ah you mean your sister really makes one of a best from her boyfriend and her family :O … O_o talk to her and let us know how she’ll react :) good lucks !

Beat his a**

Ignore it. She’ll figure out he’s a douschbag sooner or later.

Kick his ass. He’s dating your sis, not you, so it’s okay :)

if you arent comfortable around him you need to sit her down and make it known. this isnt his house. therefore, he doesnt have any right to treat it like it is. and if things get out of hand with the dog call the police because thats not okay.

I’d confront him, you mention to him that he has no right to treat anyone unreasonably including your dog, and explain that he can’t stay any longer if he doesn’t get his act together. Also it would help if your parents were round and suggest it as well.

There’s not much you can do. You could talk to him about the way he treats your dog. But other than that, it’s your sister’s choice to date him and you have to respect that.

Whoaaaa!! RED LIGHT right here!! All that stuff is disrespect in your house, as Night Stalker has already stated. You need to kick his a55 out of the house if he’s got no respect at all, then you need to have a talk with you little sis, cause she’s in serious need of guidance! A guy that shows no respect to your home usually means he is inmature for a relationship for if he has no love towards your place, what love is he showing your sister?

How does your other family feel about him?

Well you can talk to him about mistreating the dog but you cant say much else its not your boyfriend its your sisters and one day she might like someone you date but she has to deal with too.