During the first Cabinet meeting following Saxon's appointment as Prime Minister, Dumfries attempted to quiz his leader on what policies the government would pursue. In turn, Saxon insulted him and the other members of the Cabinet and accused them of abandoning their parties after they noticed the vote swing his way.
Saxon proceeded to gas his Cabinet to death shortly afterwards. Dumfries was the last member of the Cabinet to succumb to the gas, spluttering, "You're insane!", to Saxon (who responded with two thumbs up) before he collapsed and died. (TV: The Sound of Drums)