Mm. [With a touch of dry amusement:] So my coworkers keep telling me.

[He waves a hand dismissively!]

It is nothing. Just a bit tired, that's all. [He looks up at Jonathan, and though his smile is thin, it's not false.] A spot of exercise will put me right.

[He sure is no longer arguing about first-name terms. He is too tired for that, and is coming to accept it more, among friends.

Enemies, though, it won't be tolerated.]