yes. Where I live you distinguish between a lecture and a seminar. In the seminar are less people and mostly an attendance list and you are not allowed to miss more than 2 sessions. In the lecture however it's just a room full of people and no one really cares whether you're there or not. So you can just not go and basically work at home :)
you must go to some insanely strange uni because where i live, your right to attend the exam gets revoked if you only ever don't completely and utterly prepare for labs. god forbid you'd be late or miss class or sleep in late.
-kass