for the record......there is one court LE who wear all black. I see him all the time. He is LE.
Likely the only conversation he had with PJ was explaining why she had to be rushed from the courtroom. He likely only engaged in small chit chat to keep her relaxed and not overanalyse what had just happened. BUT...becasue the PJ herself used the term "engaged in conversation"....HHJP KNEW that CM would stand up and say she was tained....it could be an issue on appeal.
HHJP is so fast and astute that he can predict a trajectory before the object is even selected. His wheels spin faster than any of us can imagine. His "outburst" is likely the culmination of his entire anticipatory thought process.