Discipline when appropriately applied is loving. Being loving toward ourselves and others does not imply being permissive toward ourselves or others when what is needed is kind, consistent, and firm limit-setting.

Limits are needed whenever a behavior is likely to be hurtful in some way to ourselves or to others.

Rules and consequences are designed to help avoid hurtful behavior and are a form of limit-setting.  Rules and consequences which have already been discussed require very little, if any, further discussion at the time the rules are broken.  It is then time for consequences not discussion.  Further discussion about feelings related to the rules, and their consequences when broken, is always appropriate but only after indicated disciplinary actions have been taken.