The reason they don't give a hoot, as I found out for myself, is that the people doing the teaching aren't the same as the people setting and grading the examinations. Not only do these two groups not agree on the "right" answers, they don't necessarily agree on the scope of the course. SF is reminding me to be perhaps a bit more precise in my answer. I sought an LL.M from the University of London. I took a double subject and sat the exam once. I was allowed a second attempt but I didn’t think it worthwhile. I had already had to purchase a dozen expensive books and I just couldn't work up enthusiasm for another solid year of study. So there's that. My score was 47 and passing was 50. Had I taken a single subject, I could have taken a "condoned pass" meaning I could still complete the program so long as I didn't need a second condoned pass. This option was not available for a double subject. That's not as unreasonable as it might sound; my double subject comprised half of the total work for the degree. Finally, for the LL.B, the passing score on the same double subject would have been 40.