This sounds like good old-fashioned common sense to me (I know, an oxymoron these days). All that said, in my younger, more debauched years, I had a strict code of never engaging in sexual conduct with someone who had been drinking, no matter how much she asked me to.

My wife (of 22 years) on the other hand? We're both perfectly happy to have a few drinks, knowing full well where things are going to end up.