* When I leave a church, I leave a church. It is unfair to the next pastor for me to maintain extensive contact with my former parishioners. I am no longer their shepherd and I sever the ties. This may include changing my Facebook list as situations warrant. This may seem rude but, unless years have passed, I am overstepping my bounds to keep connections in the church.
* I don't try to steal another shepherd's flock. I am seeking lost sinners to save in order to grow a church numerically. I don't encourage "church hopping." A possible exception to this is if a Church of God person left for another Christian faith group holding contrary doctrine. In this case I would have far less trouble asking for a parishioner to "come home."
* If a person has a pastor I won't visit him in the hospital unless a) I know the person or b) a parishioner of mine asks me to visit a relative. In that case, I will make a cameo appearance and conclude the matter. I don't step on another pastor's territory.
* If I am ordained minister attending a church I have no spiritual authority equal to or over the pastor. Jesus Christ didn't place me there as pastor, elder and bishop so I have no claim to his pulpit. As Christians we are equals in the Lord but I am not his equal in the local congregation. I serve at his pleasure (if at all). If he asks me to preach I do so. If he doesn't ask me to preach I submit to his authority without a grumble. It isn't my call.
* If I am preaching at the pleasure of another pastor from another church group I preach Jesus Christ and him crucified, not something divisive. I expect Southern Baptist doctrine in a Southern Baptist Church as much as I expect Church of God doctrine in a Church of God church. Either preach what all can affirm or refuse the invitation. I preached multiple Sunday mornings in a Presbyterian Church a few years ago. I referenced John Knox. I quoted from the Heidelberg Catechism. I preached the truth (I can't lie and preach before God what I don't believe) but I didn't bring up divisions between us. They placed trust in me and when I ascended their pulpit I didn't betray that trust.
This is a random sampling of my Code. We pastors may disagree with a point or nuance here or there but my conscience must be clear before God.