Should I protest about my internship?

I have an internship this summer with a top company. I get paid well, and I'm proud to have the opportunity to work there. The downside is that I hate what field I signed up for- its not hard, its just really boring. I've only been interning for a few days and the internship seems more like a job I had back in another summer (and I can honestly say that that I HATED that job- a total waste of my summer). The job is for 8 hours a day, and I can hardly wait until the first FEW weeks are over. Though I should be grateful for the opportunity, I would like to ask my mentor if I could work in another field in addition to the one I'm in, to 'get more experience' and learn even more; however I reviewed this with my mother and she started yelling at me, basically telling me to 'settle' with what I have; something she tells me time and time again NOT to do. I would still like to work with the company, but I would just hate to work the rest of my summer before going back to college on something I waste my whole day on since I found out what the field was really about. Though my mom said no, I'm in college so I'm really not listening to what she has to say because she's only keeping me down. Should I ask my mentor anyways if I could work in two fields to 'gain more experience' and explore other fields in the company (without telling her the current one I'm in is boring)?