The Dangers of Inter Communion

The Bible says you can have communion with the wrong heart. And then Paul says the sacrament actually works against you. It's like Christ is into the act of intimacy, but you're not into it. That's perfectly legitimate. The other question is what about inter communion with others? I don't think that's said in stone either.I think the reason the church says no, we can't have it is more a practical than a theoretical one. There is no salvation can easily be misinterpreted.