Not a medical doctor? Well, Zoidberg wasn't one either. Secretly. But he wasn't about to admit that here, not when things were going so well. He stopped shaking the Doctor's hand soon enough, though, once he realized that he had no idea who this guy was.

"What, so your name is Doctor? But you're not a Doctor?" He withdrew a claw and scratched his head slightly, attempting to process this strange information. Well, people in this place certainly had some strange names....