i was a prefect...but when there's 40, you can normally get away with doing jack all. it was cool though, cos we got a neat navy blue tie, and a little prefects room just for ourselves, and big roomy lockers, and little badges, and pockets for our blazers
i have to admit though, it was pretty much all show and very little substance.
i did go for captain and all that, but my chances were literally zero...i dunno why i even put my name down. but i think if you have a decent chance, definitely go for it...in any case, it looks great on ur cv