a clock radionthat shoots firework as the alarm is invention
It becomes an addiction when someone is unable to function without the drug. This is called withdraw and comes with side effects like: sweating, lack of sleep, lack of hunger, chills, etc.
So, I'm probably wrong but it would be a 3/6 chance of landing on a primary color because three of the six are primary and the three other are not primary colors, therefore it is a 3/6 chance.