Don't see how it is the waitresses' business either.....pumping and dumping is a waste of milk unless you're planning on getting plastered in which case you shouldn't have a child in your care, the amount of alcohol that gets into milk is extremely minimal. Safe to drive, safe to BF. If the mum was stumbling out I would understand, but the waitress sounded like a busy body who I doubt actually knew much about alcohol and BF.
Ok...i pump sometimes if im really full and my baby doesnt take a bottle that well so i usually have to "dump" it....its not a waste...im always making more.....
Just like we dont know exactly how much is safe to drink while preg im assuming the same goes for bfing....i doubt we really know how much gets into the milk...
And here in my province they advocate "DONT drink and drive....they have a "legal" limit...but i feel uneasy seeing anyone even drinking ONE drink then driving....so for me same goes for bfing...
As i would never have a drink while preg...i would never drink while bfing...
BUT i would not call the cops on someone as it really isnt my business...i just feel for the baby...
It's not the same as pregnancy, they dont know exactly what is passed in pregnancy (well they know it passes but they don't know what affect it has on the baby with small amounts thus it is better to abstain) with BF they have checked the composition in the milk and have seen in a couple drinks alcohol doesn't pass through, so there isn't any what ifs, alcohol hasn't passed into the milk thus it can't affect the baby, it's not up to debate it's been proven, I think it is the social stigma of not liking seeing a BF mum drinking alcohol more that puts people off, but the science says it's fine.
The reason they say safe to drive, safe to BF is because it's a good indication you have drunk little, it's nice to give mums confidence when all they blooming hear us "DONT DO THAT, DONT DO THIS". In reality you could drink a lot more and the alcohol won't pass, but I think the issue with drinking and BF by that point is being under the influence while taking care of a child. I also don't drive after any amount if alcohol, because I know one drink makes me tipsy, but I also know the way alcohol metabolises means one drink won't go into my milk.
It's science, you can't dispute it, if you just don't want to drink while BF that's fine, it's your decision, but it doesn't change the fact you're not really protecting your child from harm abstaining.
Disclaimer: I don't drink a lot haha, I probably sound like an alcoholic....!
My brain is debating itself from both sides. 
