Since the stipend covers the extracurricular (stress on the "extra" part) aspects of the job, the school is going to expect you to do those things, and usually spells them out for you. Of course, since they are extracurricular, you don't have to do them...but then don't get bent out of shape if your stipend gets smaller, or eliminated.

Of course, there is a way out of this. When you interview for a position, ask what specific things are expected from you as far as job duties. When they answer, you then have two options:

1. Sign the contract,

OR

2. Politely turn the job down.