There are so many tihngs that JWs "frown upon" that they must have very badly lined foreheads.
I love the way the watchtower says "this or that activity is over to the individual's conscience", when we know perfectly well that, if it became known that a JW's consceince allowed them to do it, he or she would be frozen out of the fellowship. That means, literally, there are some activities that the watchtower has never come right out and explicitly condemned, but we know that if a JW did it, he or she would be out. Hence, the watchower can say, "We have never said that is a disfellowshipping offence.