Two Questions: Wine and Food Poisoning

Okay I have two hypotheticals:

1. If I drink one glass of red wine do I still need to pump-n-dump? I have a dear friend who has one glass everynight with dinner and has never p&d'd. She said it's not enough to affect her child and has done this with two kids now. They both seem fine. (Mine is 4 months' old and I've never had alcohol while nursing but would love to on occasion have one or a 1/2 glass of wine).

I've already put away the pump (it was a Godsend during thrush but we EBF now and I'm relieved as that's sooo much easier) and wonder if I needed to get it out again. I'd rather not deal with P&D since she eats on demand and I have no backup stock. : What do you think?

2. While pg, I got food poisoning. I know if I were to get sick with a virus or cold or what have you, while BFing, I should definitely keep BFing to give baby protection against whatever I've got. *BUT* what about food poisoning? Not that I plan to get it mind you -- I'm very careful -- but what if a mama gets food poisoning? Should she still BF or would it pass through the breastmilk? Just curious.

Thanks!