The Supreme Court of Georgia describing an obvious basis for recusal: you accuse a judge of prejudice and he acts unprofessionally in response. Mondy v. Magnolia Advanced Materials, Inc., 815 S.E.2d 70, 81 (Ga. 2018)
This reminds me of when former Ohio Supreme Court Chief Justice Moyer ruled that he likely would have been "inclined" to deny disqualification--if the judge hadn't written such an angry screed against the lawyer seeking to disqualify him. www.supremecourt.ohio.gov/rod/docs/pdf...