Souter is an infuriating piece of work. Does anyone suspect that he is gay or just a bachelor? I suppose weasels just have a different biological makeup is the answer.
Maybe the source of Souter's irritation is that when Lawrence v. Texas came up, Rehnquist asked if anyone needed to recuse himself and everyone looked at Souter.
Then, maybe in order to break the awkward silence, Justice Thomas broke the ice and told the joke about the Coke can...."hey, anyone ever heard the one about..."