Yeah. I'd like to see the Bible verse on that one!
28A man ought to examine himself before he eats of the bread and drinks of the cup.
29For anyone who eats and drinks without recognizing the body of the Lord eats and drinks judgment on himself.
30That is why many among you are weak and sick, and a number of you have fallen asleep.
I Corinthians 11: 27-30
Yeah. I'd like to see the Bible verse on that one!
Just for reference you may want to check out I Corinthians 11, verses 23 through 30.