I told one young brother who was holding a sleepy toddler- we had finished discussing the Jewish viewpoint on blood (not convinced yet)- and I asked him- "didn't your Jesus say you could rescue a sheep from a pit on the Sabbath- when they could be stoned for working on the sabbath? "yes" he answered,
"So remember that if you ever have to make a life and death decision on blood (nodding at his son)- talk to a Rabbi, if you want to better understand why a blood transfusion has nothing to do with eating blood- don't let you family die over a human interpretation about blood transfusions- a teaching that the WT could change tomorrow."
He left and I could tell he was thinking about what I told him