Other vulnerable audiences include emerging markets in developing countries, where the public may not be sufficiently aware of skilled marketing ploys transferred from developed countries, and where, conversely, marketers may not be aware how excessively powerful their tactics may be. See Nestle infant milk formula scandal. Another vulnerable group are mentally unstable consumers. The definition of vulnerability is also problematic: for example, when should endebtedness be seen as a vulnerability and when should "cheap" loan providers be seen as loan sharks, unethically exploiting the economically disadvantaged?