So apparently his brain just registered a reluctance to shoot down his girlfriend too cruelly, and wow does that impulse need to get poisoned and handed off to the Surreptitious Head Removers, not just because entire integrity of the teaching process, but also because Keltham has ever met Carissa Sevar and if she could read his mind about that she would be cometary-impact levels of sad and possibly angry.
"Interesting, interesting. Well, Carissa, want to play a few rounds with me of predict-if-the-coin-lands-Abrogail-twice-in-a-row? It's a pretty simple game, on each round, we write down our numbers, Asmodia spins the coin twice, and if it's Abrogail both times that's a yes-event, and otherwise a no-event, which we also mark down. After 12 rounds we reveal our numbers, score ourselves using your rule, and whoever has the highest score wins. Anyone else in class is also welcome to play along."