After the Catholics do communion
(eating of the host...apparently- Christ's body- and drinking of the strange-Christ's blood-wine. I always thought it would be funny to go up for seconds)
the priest is required to drink the left over wine from the communion chalice. Because it has been blessed. Some people opt to fore-go the communal drinking from the chalice as to avoid colds and flu. Anyway, I digress.
I sat marveling from my pew and watched the priest drink the backwash of wine.... then envisioned him suddenly discovering a cigarette butt with the last gulp. Spitting it out in discust.

Well, Catholics are known for smoking and drinking.