Before or after he confesses his sins?
Now you are starting to join our friend Martin....
For a very public display like that, sure. Alas, I'm not sure I've ever seen something that obvious. And that's really the problem - real life tends to be more nuanced than hypotheticals.
Wouldn't voting and speaking to expand abortion be obvious. No matter how you try and nuance it, if you say abortion should be expanded, that is, by it's very nature, a belief.
But now you have me curious - how would something like that be handled among the Protestant affiliations? Does a pastor have the inherent authority to deny the eucharist? Or does the offender just get uninvited to the pitch-in? Or perhaps worse, forced to take home all the left-overs?
We handle it differently. First a reminder, communion is symbolic (no cannibalism here) so it isn't eating Jesus (except for Lutherans, they are, as always, a weird middle ground). The table gets fenced every week with a disclaimer that it is only for believers, and that it is pointless if you do not believe. So the unbeliever is already disclaimed. The pastor does retain the right of refusal, however, that can vary as most "pass the plate" whereas, at our church you have to go up to take.
As for leftovers, at our church in Muncie, that bread was good, so we frequently vied to grab some leftovers after the service. Our pastor's wife made a really sweet bread. It was killer. If we didn't get it, his kids would usually eat it at home. Remember, it is just bread.