A father showing his son why gambling is a waste of money and wrong, to prove it he put one coin in a gambling machine and hit jackpot.
When tragedy hits some country, JW's are first to get in there to give help, usually via some unknown way in that the government officials don't know about. Odd thing this is, that I have heard members of other religions quote the same story about their church being first to get in and render aid to these areas hit with tragedy.
No one have proven JW's wrong, by the way, don't listen to anyone that could make you question your faith, they are apostates from Satan.