800 people in a class!! Well, depending on the "massification" of your college it could be more than 100 people in a class, but 800... Now, I'm in my final year and most of the times we're less than 20.
Matador, I guess you had bad luck with your professors, mine are punctual to the minute 99% of the times (8:30 is 8:30 not 8:40 for them).