Smallville, Season 3

Lex:
Lana told you about my nocturnal adventure, didn't she? I can see I spooked her. That usually sends her running to you.

Clark:
Are you okay?

Lex:
Well, I haven't lost my mind, Clark, if that's what you mean. I just indulged in a little harmless sleepwalking, that's all.

Clark:
Lex, you were on a ledge yelling Julian's name. You could've killed yourself.

Lex:
You know, when I found you asleep in the middle of Route 8 last year, I don't remember questioning your mental health.

Clark:
I hadn't just spent seven weeks at Belle Reve.

Lex:
According to my doctors I'm cured. But apparently, a clean bill of health isn't good enough for Clark Kent.