If you have even the remotest intention of wanting to go to graduate school, people will know. That is something that admission committees look at. And as far as things pissing me off: people viewing the university experience as merely a gateway to a job as opposed to an education. They miss out on so much (granted, so do the people who spend all their time in the library). But given that you did register for those classes, I'm assuming that you aren't one of those people. I'd place my money on the "still in shock upon realizing how much work I have in store from me" crowd.