There's an interesting little tradition in some churches where during communion, people drink wine out of the same cup.
It happens at St. John's Lutheran and All Saints Episcopal, and I'm sure at some other churches too. The wine represents Christ's blood.
A minister has a white cloth which he or she uses to wipe off the spot on the cup where the last person drank.
The churches offer alternatives -- a small individual container or dipping the bread in the cup.
I will admit the...