This is unbelievable! That you are even thinking of having those "people" back is questionable. BE has to step up, or the relationship needs to be reexamined. Does not sound like a win/win situation.
Kids with guns left to their own devices is also criminal! Ministers kids don't get their training by osmosis! Sounds like some intervention is needed there as well.
I don't even tolerate children running in a public place. I have stopped kids from tearing around in a church hall where there are other people. Just because there is room does not make it a playground!