Actually, Terry and I had fun with this -- kidding each other and such -- and we both agreed that we had no disagreement with each other. He is further correct that Torts is not an easy course. It's a constantly evolving field.
One of the first things we learned in Torts is duty: what duties does a person have to another. Statute and case law provide for certain duties, e.g., parent to child. What about other duties? Early on, the Professor gave the situation where you're walking on the beach and you see someone drowning. Do you owe a legal duty to help that person. As I recall, the law says no. However, if you decide to help the person, you have undertaken a duty where none had been and having so undertaken, you must discharge it in a non-negligent way. If you're negligent, you can't later argue that you can't be liable because you had no duty to help the person.
This was the Professor's way of introducing us to the concepts of duty and negligence.