As a semi-outsider, I've struggled at times to understand exactly when and how JW's believe the 'sin' occurs in transfusion.
Specifically, at what point in the process does the 'sin' occur?
For example, would a JW sin if they were to attach a small surgical tube to a hypodermic needle, put the tube in their mouth, insert the needle in a vein and swallow a mouthful of their own blood?
Note that by JW standards and rulings, the blood has not left the body in this scenario. It's simply been transferred from the circulatory system to the digestive system in an admittedly gross way.
Thoughts?