I am watching House MD: S1,E1.
A patient with orange skin colour shows up with back spasm. Upon conversing with him a little, Dr House asks if he consumes ridiculous amounts of carrots and megadose vitamins, to which the patient affirms. Dr House then tells him that carrots are turning him yellow and niacin is turning him red. Find some finger-paint and do the math.
Why would he ask him to get finger-paint? Also why hasn’t the patient’s wife noticed his changed skin colour even if she is having an affair ?