As a kid, my DH very rarely attended church, and when he did it was never a Catholic church. I grew up in a very Catholic family and sometimes forget that much of Catholic culture which is very routine to me is very foreign to him. The following is a funny example of that.
Several years ago, DH and I attended a wedding where the happy couple were both devout Catholics and chose to have a Nuptial Mass. We were seated towards the back and shortly after Communion, DH looked at the altar and then looked at me with a horrified expression on his face. I was behind a bunch of tall people and couldn’t see the altar, so I told him to ask me about it later.
In the car on the way to the reception, DH said, “That priest guy drank everything in the cup that everybody else had been drinking out of!!! That’s so gross!!”
I replied, “Um… yeah, he’s supposed to do that.”
“YUCK! He was just chugging away like a frat boy and there was all that backwash!“
“It’s OK, the alcohol will kill the germs,” I said, trying to suppress a smile. It’s hilarious when DH gets grossed out… to me, anyway. ”Besides, they wipe off the cup between users.”
“Oh, that’s totally going to remove all the germs!”
Somehow, I doubt DH ever passed around a bottle of liquor when he was younger…

Ha! That is great. I have recently started attending an Anglican church and that is still very weird for me – drinking from the same cup and even using wine.