I know you're not supposed to do a melacha on Shabbos in order to prevent another Jew from doing one. But is it prohibited to do something (not a melacha) which will likely enable another Jew to do a melacha that he wants to do?
For example, if a Jew asks for a packet of ramen noodles on Shabbos, which he says he plans to eat immediately, and you know he will have to cook water to make them--are you allowed to give him the ramen?
Would the answer vary according to the following?
--Whether he is capable of getting the ramen himself? --Whether he is in one of the halachically-defined states of discomfort, illness, or incapacitation (and wants ramen to feel better, or as a cure)?