This is kind of mean! Here I am, doing math - and there is my sister, sitting on her bed, with a water gun for if I go off to, say, youtube or wikipedia.

...

Mean, perhaps, but effective.

Failed math test + "O HAY CAN YOU COME IN AT 8:45 INSTEAD OF 1:30 TOMORROW?!?!?!" = NOOOO. Gonna go get a nice warm bath, then curl up in bed and see if I can't channel this sulk into something more productive.