Over the years I have learned what my SO is like and how she acts. I know when she has had too much to drink ( happens about once every 4 years lol) but I can tell she is going to regret things either in the morning or sooner. Piggy backing on the jealousy question I can tell she starts to get very huggy, flirty and throws caution to the wind. This is the point I normally step in and yes she gets mad at me for doing so and by the time we get partway home I have to pull over because she is going to lose lasts nights dinner. I would like to know what other people would do in this situation Step in and take control? Sit back and wait to see what transpires? I always have gotten an apology the next day and I blow it off because I used to do it way more often than her. I look at it as caring for your SO to make sure they are safe.