Nope. Chinese businesses haven't learned yet.

Will they stop when we stop buying their products?

Hong Kong food safety authorities said late Tuesday that for the fourth time in less than two months they had found a batch of Chinese eggs contaminated with illegal levels of melamine, the industrial chemical that has sickened hundreds of thousands of children. The agency said the tainted eggs were imported from a company based in Jilin Province in northern China and were being sold to bakeries in Hong Kong.