Example, my neighbor just got diagnosed with advanced prostate cancer - We discussed the metabolic theory of cancer at length, including the Warburg effect. They made a informed choice that while they appreciate knowing about the option their expected survival rate with the cancer and their advanced age mean any intervention or change in behavior isn't worth the effort at this point.
Obviously it's not the choice I would make, but I respect their decision and we have so many other things to talk about. I made the information available, they considered it - that's all we can do at the end of the day.