Well, my brother was definately a sleeze bag back then. However he was not violent...so he would not likely of forced himself on her, but he would have surely taken full advantage of her drunkeness. After all that is why he showed up at his little sister's party. I would like to claim ignorance; but I can't. Honestly, in my little world back then...if you were stupid enough to put yourself in that situation...
As an adult and parent, I see things differently now.