The correct answer would be lead paint. Even though there has been a decline in the amount of lead based paint that is used nowadays, still the largest source of lead poisoning in children in America comes from dust and chips from deteriorating lead paint on the inside walls of their homes and schools.
A good rule of thumb is to give yourself at least 24 hours to decide if buying something is a need, or just a random impulse purchase, by “sleeping on it.” That allows enough time for your impulse to settle down so you can approach the purchase with a clear mind if you really do need it.
