"That'd be because it'd be very, very useful for me. He doesn't like me much, I always keep him from doing crimes and such. If I could regenerate myself, I would be... absurdly powerful, because I could sacrifice myself to power spells and stuff. Which would be bad for him."

Morty nods frantically. He points at his gag.

Ari sighs. "Do you want his side of it, or should we just ignore the annoying criminal?"