The last 100 schooldays celebration

Students from the last year in high school , celebrate their last resting ( 100) schooldays.I remember in my last 100 schooldays celebration , it was only after school we might celebrate , which was a Ball ending around midnight. Nowadays    they celebrate more then 1 day  sometimes more then 2 and continuing overnight. So in the morning you spot many dazed and confused pupils from too much booze and sometimes other substantials. Anyway you re only young once...in a lifetime.