For a moment, Damian missed his headphones. The little white ear buds was usually sufficient to keep most people from starting a conversation. They came in handy when Damian wanted to ignore people though Damian doubted they'd work on Grayson. The man could probably carry on a conversation with a potted plant.
Damian grunted in vague acknowledgement. He could have snapped that he was trying to focus but that wasn't the truth. He could multitask and the only present in the vents was a disturbing amount of dust.
"Are you really talking about this now?" he replied.