Quote Originally Posted by friendowl
you can not be tested against your will
they must have your consent
I guess you have forgotten about home tests administered by parents.

Parent:"Kid take this test."
Kid:"No"
Parent:"Ok, no money for you, give me the car keys, the cell phone, no computer for you, curfew is now 8:00 P.M. and here is your megalist of chores to do."