I heard this joke from a 'worldy' friend of my DEVOUT, fanatical JW mother:
Mike the good Irish Catholic died and was met at the elevator to heaven by Saint Peter. "Oh", says Saint Peter, "I know you Mike. You're the good Irish Catholic boy that loved the Lord so deeply. You will be going directly to the top floor, since that is the Catholic heaven!" As the elevator made its way upward, they passed the 2nd floor and heard chanting, bells ringing and smelled incense. Mike asked, "Who is on this floor?" To which Saint Peter replied, "That's the Eastern Orthodox floor of heaven." They continued to move upward and at the 6th floor strange languages were heard and lots of commotion. "And this floor" Mike asked, "which denomination is here?" "Why the Pentecostals, of course." came Saint Peters answer. Approaching the 9th floor beautiful choir music filled the air. "Let me guess", said Mike. "Is this the floor for the Mormon heaven? The choir is singing beautifully and in perfect harmony." "Yes, yes! Very good observation Mike. It is indeed Mormon heaven" said Saint Peter. Suddenly, Saint Peter stopped the elevator at the 12th floor. "Why are we stopping?" inquired Mike. "Well," Saint Peter admonished him, "You must be very, very quiet as we pass by the 13th floor." "May I ask why" said Mike. "Certainly", laughed Saint Peter, "That is the floor that the Jehovah's Witnesses are on. Even though there are only 144,000 of them, they think that they are the only ones here. We must not upset their delusion by making any noise when we pass by their floor!"