Your spouse or child's father/mother just did something that has really upset you or made you mad. You are irrate, frustrated, tired, upset. You want to let this person know exactly how awlful they are and what they did wrong. DO NOT, I REPEAT, DO NOT SEND THAT TEXT MESSAGE OR E MAIL! Your significant other is likely doing this just to get under your skin....don't let him/her "win!" I tell clients to impose the "24 hour rule"- draft that text or email, but wait 24 hours before sending it. You don't want to send something in the heat of the moment to only regret it later. I have seen too many clients burned by nasty emails they have sent the other party, particularly in custody cases. You need to be prepared for every written piece of communication to be used against you in court. You also must remember that nothing you do or say is going to change your spouse; the only thing you can control is how you relate to this person.