This semester I have two lectures each week (not in total obviously), each one of those taking 3 hours from 4pm to 7:15pm on Mondays and Tuesdays. Both are given by a professor with a strong accent and a sometimes little bit strange view of the world. I think I never wasted that much time before in my life.
But I have no other option than just going there, doing all the homeworks. It's mandatory for my Computer Science degree.
Sometimes in life it's just necessary to accept circumstances and try to make the best out of it.