I have been taking a course and the lecturer always goes over time. It should last from 6 to 8 but for instance tonight she was still carrying on when I left at 8:20. I'm a single mom and have to be home to relieve my sitter who can't stay later. I feel like I'm always at a disadvantage because I can't ask questions after and I'm missing information the other students are getting. She doesn't show up until right before so turning up early doesn't help. I'm paying for the course like everyone else. Is this normal practice?