You should be careful in your approach since some can backfire.  What worked for me was my son's question "What's up with the Watchtower joining the UN".  We looked it up on the UN website and I was convinced.  But when I tried to get my Dad to see the light thru the information on the UN and the Borg he quickly bought their excuse of "we only wanted a library card".  Being from the older generation he has been conditioned to trust the GB and not the internet.  He found it impossible to trust his own logic that YOU DON'T NEED TO BE AN NGO TO USE THE LIBRARY.  Duh!!  Anyway, you will be the only one who will be able to ascertain what might get to someone.  Best of luck!  (Oh, I really said luck???)