How to deal with your sister?

Ok, as with all family drama, I could go on and on in details, but I'm going to try and make this short and sweet. Just going off the past week, my sister has: played footsie with my husband under the table at dinner, smashed a cupcake into my 10yr old's eye(believe it or not it was quite painful),poured red wine onto my carpet(wasn't an accident but she played it off like she was too tipsy to realize not to do it),ran me down on my birthday(to my face) about how horrible I look after two kids, showed up late to my 5yr old's birthday and left early, told me I didn't deserve the new house my husband and I are buying, and to top it all off today she told me that my two year old was a horrible child because of my "helen keller parenting". I suppose because I ignore tantrums and I don't restrict his play area to his bedroom only this lead her to believe this. I'm just really getting fed up and don't know what to do. I also should mention that two years ago, with similar situations going on, we ended up not speaking for almost a year. I don't want this to happen again, but I'm really getting fed up and don't know what to do to pacify the situation between the two of us. By the way, if you say anything to her, she'll write you off. So a simple, "please, don't play footsie with my husband or criticize my parenting" will lead to an all out fight that will lead to same thing as before. Advice please!