code: function(local_record, referenced_record) {
  
  		if (!Firestorm.Array.exclude(this._collections_by_foreign_guid[referenced_record.guid], local_record)) Lava.t();
  		this._fire('removed_child', {
  			collection_owner: referenced_record,
  			child: local_record
  		});
  
  	}
docs: Remove `local_record` from field's internal collection referenced by `referenced_record`
  @param {Lava.data.Record} local_record
  @param {Lava.data.Record} referenced_record