I did an update class about a month ago that was scheduled for SAT and SUN. The teacher (Sean) was really focused (and good) and got the whole class done on Saturday so I still had my Sunday off.
He wasn't the regular teacher for the school but I would really like to take more update classes with this guy. I figure if I have to spend the time in school I at least want to learn something and I did.
People are usually shocked when they find out I'm not a very good electrician.