[ He nods mechanically. Being careful doesn't mean much to him right now, but Seto doesn't need to know that. ]

I will.

[ He starts for the exit, but then turns back and smiles at Seto. ]

On the off chance I don't find a way out right away, I'll be back sometime in the next few days.

[ After a moment he adds: ]

And you should get some sleep so you feel all better.