He is scholarly! Debi's Dinah Lance had the right idea when she pondered, in narration, that she'd like to encourage the scholar to calm down the assassin. It is the second best shot Milliways has at neutralising the threat that is Urquhart. The best is getting Jacob the Fox and locking them up somewhere for a Woody-Allen-esque psycho showdown.

Urquhart suspects that Yrael doesn't consider him worth half a drowned kitten...