Thanks all for your input. I agree with larc, its a great way to scare people out of leaving--"You'll become a murderer!"
I think of all the times I have read articles which say things like, "Each one will make his/her own decision. HOWEVER, our bible-trained conscience tell us that we should...." whic of course, totally nullifies the preceding statement which tells us to make our own decision!
I don't really think of it as a conscience, it's more like Pavlov's dogs. When JW hear the words Conscience Matter, it's automatically a NO-NO for the "Mature Christian".
The truth is, for years now decisions which were personal by nature have been subjected to the whims of a bunch of elderly men in Brooklyn.