I am currently on holiday and met an older married couple here. I had a little talk today with the husband, and he told me that his wife had a stroke and just started smoking again. And he is definitely not happy about that. Late that day, his wife asked me if I could lend her a cigarette. She didn't want to get her own at the moment - that would probably lead to an argument with her husband.
This brought me into an awkward situation. On the one hand I can understand why she wants to smoke. But I don't want to support it, regarding her health situation.
But most importantly: I don't want to get into an argument with her or her husband. They are really nice people, and I am scared of burning any bridges.
How to react in such a situation declining her request?
Edit:
I did decline it, saying something like, that I don't want to stand in between her and her husband. But it is possible that she will ask me again and I'd like to be better prepared then.