When the father returns to the courtroom, you asked the bailiff what happened in the hallway. $$He wouldn$$t stop swearing at her,$$ the bailiff replies. $$And then he started swearing at you.$$ Now the mother chimes in$.$He$$s the one who should be thrown in jail. Swearing like that is exactly why I do not want him near my son.$$

Now you have another decision to make.

Yes, things got out of hand, but both sides bear some blame for the situation, and besides, much of what the bailiff says happened outside your direct presence. Better to reschedule the hearing and let everyone have a chance to calm down.

Both parents disrupted your courtroom, but the father is the only one who needed to be removed, and then he still would not stop swearing. Clearly he is the one who needs to be held in criminal contempt.