Imagine you are a primary school Arts teacher, teaching kids ranging from 6 years old to 12 years old. You are now shopping for school supplies for your students at a local stationery store, and in front of you there are two types of crayons namely Brand A and Brand B, both are manufactured in Hong Kong. Brand A is with fancy packaging which you believe the kids must love it very much, though you can’t see any indications saying the products have undergone any kind of safety testing. Brand B is packed plain, with a note saying “ Tested. Safe for kids of all ages”. But you are not sure if the kids love it.
