Fives continues to grin - he was aware that Delvar had forgotten that detail for the time. He's very used to people not quite understanding what clone-life involves.

His helmet now safe on the table he taps the side of his head, next to his tattoo. "We go to some lengths to avoid that problem, as it happens."

But that doesn't really address the fact that it isn't a problem. Clones know each other, and everyone else is incidental.