This ones a tough one. I really wanna say that I would kill Hitler, but it wouldn't be the right thing to do.
Hitler was a terrible person, but it would make me a terrible person for killing someone too, so I wouldn't be any better than him.
Check out the wikipedia page for Jehovah's Witness demographics: http://en.wikipedia.org/wiki/Demographics_of_Jehovah's_Witnesses
Everyone knows about what happened in 1975 and here is the official statement from the Watchtower:
"Have not Jehovah’s Witnesses made errors in their teachings...
Jehovah's Witnesses can flirt and date if they are dating to hopefully be married to that person one day. They view dating as a way to better get to know someone for a marriage mate.