NO NO NO NO NO!
Jehovah's witnesses, are not evangelists for a start....not even evangelist TYPES!
Jehovahs Witnesses believe that to take the blood of another is to allow the SOUL of another into your body and to be possessed by the devil himself.......yes, folks, the devil himself!
The 'Give Blood' sticker on your door will certainly discourage a Jehovahs witness from engaging in conversation with you about their religious beliefs.
Also, if you know anything about the teachings of the bible, dear friends, use it to your own advantage, invite them in for tea, coffee, any other non-alcoholic beverage and treat them to YOUR version of the TRUTH....keep them for hours - like i do - your neighbours will love you - the jehovahs witnesses will love you - their god will love you - problem solved!!
Thank you, ladies & gents - i'm here all week.....! ;op