it wasnt by mistake
i bet either the teachers wanted to have a day off from dealing with unruly kids, or there is a mass conspiracy and some intrest group wanted to see what would happen.
and to answer your question about flouride - the goverment couldnt care less about dental health, because more bad teeth = more money for dentists = more money for goverment. the real reason is because flouride builds up in your pineal gland. This inhibits your body from doing many things. you dream less, and less intensely. you have trouble falling asleep, and wake up earlier, and are able to run off less hours of sleep. flouride completely fucks with your circadian rhythms by messing with the production of melotonin. flouride also inhibits people from being able to you whatever paranormal abilities they may have, wheather it be a keen instinct, a "third eye", precognition, etc. it's because most of these capabilities involve development of learned utilization of the pineal gland - there arnt many publicly available studies on this subject, but you can easily draw this conclusion. It's a fact that the pineal gland is the one part of the human body that could potentially be capable paranormal activity. this is backed up by thousands of years of buddhist and hindu knowledge, along with Rick Strassman's studies on DMT. It is proven that flouride builds up in the pineal and never leaves - often getting to toxic levels when you get older. knowing the chemistry of flouride, it will not just sit there benignly, it'll most likely inhibit the function of the pineal.
so, what conclusion can we draw from this? the goverment wants to make us docile, unquestioning, hardworking, incapable of true independant thought, and completely unable to achieve a higher level of spiritual enlightenment and comprehending it, forever enslaving the masses to the Rabbis/pastors/preists/imams suggestion. doesnt this kind of resemble where the people in the country are like now?