Elky's dead-on with this.
Toner is NOT, repeat, NOT to be ingested. It's nasty stuff. Aside from the health hazards, once it's airborne, good luck getting it out of ANYthing. The walls, the ceiling, the floor. Once it's on your hands, good luck getting the dye out of your skin for a few days. You will be (if not, you SHOULD be) footing the bill for janitorial services for at least the month. If it hits the person's eyes... you've got some SERIOUS problems, as well.
Turning the nozzle upside-down is funny enough, but, NO toner.
