[Yusuke chuckles a bit, at that.] I'm actually something of a purveyor of bad puns, myself, so I think I can forgive you.

[... Mostly he only purveys them to make Futaba suffer, because bullying her is funny, but hey. When Kaiba steps out of his space, though, he feels a little... hm.]

Everything is truly all right with you, isn't it? [maybe it's the trial just making Yusuke feel paranoid, who knows]