[sets his jaw] How thoughtless of him. [cool. thoughtlessness can get you killed.
[he's been cultivating that moron Yuuri's friendship exclusively to keep something of a handle on his followers, who seem to be considerably more competent than the moron himself. if Conrad knows about his geass, then Conrad will feel he needs to protect Yuuri from hypothetical actions; he'll tell his comrades; he might tell others, since Conrad has no loyalty to Lelouch. to say nothing of Guilford himself, who apparently sees nothing wrong with passing on information of this magnitude]
How did you find out? [he hasn't heard anything about that]