[Jesse comes to a halt as soon as he hears Carl's voice, his heart sinking into his stomach. Though he's been warned about that grudge Carl's been nursing, Jesse's not afraid of the kid. It's just the guilt that eats away at him, knowing he's fucked this kid up maybe even more than the shit world he came from.

He shrugs the duffel bag off his shoulder and holds it out for Joel to take, though his eyes remain on Carl.]

The Professor left his bag in my car. We were just returning it.

[But this looks like it might turn into another session of Carl berating him, and Jesse's not going to make Joel sit through that. His next words are to Joel specifically:]

Why don't you go ahead and drop that off in the headmaster's office?