"I am unable to offer that service, as the University pays me $6700 to teach that course. I am paid for 225 hours of work. It actually takes 280 hours. If I go over final exam papers with students, then it would be 300+ hours."
Interesting and timely. The "sessional instructors" at my university called "Unit C" in the union are negotiating a contract and have already been given a strike mandate.