[L props an elbow against his knee, resting his chin in his open palm. He regards his adversary-turned-Bond.]

It sounds like I really do know you the best. You can't think of anything?

[Light's default is taking things seriously. It makes him fun to rib and needle, in the way that people can when insecurity isn't on the table, and punching below the belt is distinctly disallowed in the contest.]

You're many things, Light. Impetuous is not one of them. You're consistent, fastidious, and stern, tending not to deviate from those traits, and so... I would know.