[It's not unreasonable, but the question makes Saul uncomfortable anyway. Here they are, talking about potential criminal activity — so if Saul gives Joel Jesse's name, that's kind of a dead giveaway that Jesse's been up to some shit. He wouldn't want to put the kid on the spot like that.]

A good lawyer doesn't kiss and tell. My clients value me because I value their privacy, so, unfortunately, that's not information I can give you right now.