What would the reaction be to someone partaking. If they're passing the emblems, certainly they should anticipate people partaking; otherwise, what's the point? If I were a believer, and a member, I suppose I'd partake. After all, I'd think being a heavenly creature would be a much better future than being stuck in a worldwide garden. If you've ever seen the Stargate series on TV, wouldn't existing as an "ascended" being have it all over having to live trillions and trillions of years as a terrestrial bound immortal? If you think about eternity and can even in a small way comprehend it, you would be able to count every grain of sand on every seashore of the earth billions of times and it would only be a fraction of a second in the long stretch of eternity that lies ahead.
As I understand the JW eschatology, only those of the 144,000 are supposed to partake. Even if one grants the bizarre interpretation the JWs have, who is to say that the number should be dwindling? The number is taken from the entire human race from the beginning of mankind to the end. And though it refers to the twelve tribes of Israel (12,000 from each tribe), we know that Abraham, Issac and Jacob will inherit the Kingdom of Heaven (Matthew 8:11). How is this possible seeing that they were not from any of the tribes of Israel? And doesn't someone living today have just as much of a chance of being one of the 144,000 as anyone else who's ever lived? It's shallow thinking to say people taking the sacrament today are just crazy old coots and wackos.
If someone passed the plate to the next person and that person partook, what would the people on either side of him/her think? Also, how much bread and wine are passed? I've never been to such a service, but if it's a meeting where everyone is acting suspiciously and watching who's taking it, doesn't that kind of defeat the purpose of the ceremony?
Jesus' death and resurrection covered the sins of all men, not just the 144,000; so when the bread and wine are administered in remembrance of his death -- his body and blood -- shouldn't all partake?