Roseanne Barr desires to slip her ex-husband of custody of their son ... and she let everybody know it today in open court.
Roseanne and her ex, Ben Thomas, are in the middle of a trial to decide if Roseanne has to foot the bill for Ben's trips to Hawaii to trip their son, Buck. Roseanne lives in Hawaii and Buck attends school there.
All through the trial today in L.A.County Superior Court ... Roseanne's legal team said they are in the practice of filing for "sole legal and physical custody" of Buck.
Her attorneys look ahead to entire the process once the judge rules in the current trial.
Exterior court, we asked how it went -- and Roseanne only put her hands together to pray. Roseanne is likely to take the set tomorrow.