I was sober for five years. One evening at a work dinner for a new job and feeling insecure, I drank half a glass of wine. Moderate, no?
Next night at my hotel I drank one mini bottle of champagne. "Moderate" again.
Well the next day I had a screaming hangover all day long, just from that amount.
Three months later I was a daily drinker again.
My body does not like alcohol and at day 419 I like to think I'm finally convinced of that. Moderation to me is like having only a little arsenic, but this particular poison is much slower to kill you.