Me, talking about Ramadan with a Muslim friend: So if you're fasting for Ramadan and then you go to church, how would you have communion?

Him: What's communion?

Me: It's a commemoration of Jesus's (PBUH) last meal with his followers. We share bread and wine.

Him: The Prophet Jesus (PBUH) had wine? No offence but I don't believe that.

=====
Once again ecumenism stumbles on the details.