what's wrong with the children of this country?

i had lunch y'day with a gal fren and seated opposite us were a bunch of school gals in their uniforms. as expected, they were rowdy and laughing away. after about twenty minutes into our lunch, we noticed that they were playing with the items on the conveyor belt in the sushi bar. first, they took all the wasabi containers off the conveyor belt and after which, put them ALL together back on to the conveyor belt. next, were the colored plates. they 'kind-heartedly' tried to sort out the plates according to their color by removing and placing them on the conveyor belt. its obvious that they were having lots of fun as they whipped out their camera phones to take photos of their creations. such a weird sense of humour - is it that fun? sorry but i really don't appreciate people 'playing' with my food! did they have nothing better to do? when they stood up, our jaws dropped! they were from one of the top gal schools in this little isle! what happened to the upbringing of this generation?