My sister's marriage broke up a few years ago and she has a new partner. He's a heavy drinker but never seems drunk or even tipsy - if you know what I mean.
So at lunch, he'd easily polish off a bottle of wine (or more) with my sister and do the same again in the evening. He encourages everyone around them to drink too – even offering my 14-year-old a glass of wine on one occasion (I don't realize till after the event).
My sister says he can carry his drink and isn't affected. I know this is must be untrue, whatever she may wish for!
We recently had a family celebration at a country pub. He and my sister were both driving due to the number of people involved. He had a good few glasses of wine plus beer, and she certainly had at least two glasses of wine plus a G and T. Their kids were there and they both drove.
I'm so upset about it as I can't bear to think of people on the roads under the influence. And also upset about their kids being in the cars, and also the example they are setting to their kids in normalizing it. I didn't say anything at the pub as I hadn't really taken on board what she was drinking. It was my husband who noticed and said afterwards.
How can I broach this with her? I don't want to cause a rift and I just feel that's going to happen. But I can't stand back and say nothing.