Right. Sparks mean the end of that line of questioning. Childermass holds his hands up in a placating way as if to tell Psi to calm down without having to say the words aloud.

"Alright. We don't have to talk about it," he says before going on to add, "I believe it's your turn again."

The game may as well continue, even if it's only to distract the troll from vampires and the Nightrider. What's been said has already given him enough to think about.