Sarah Palin likes to be called "Sarah Barracuda." So, I got curious as to Merriam-Webster's dictionary definition of barracuda. Here is their second definition, with a link to it. "bar·ra·cu·da 2 : one that uses aggressive, selfish, and sometimes unethical methods to obtain a goal especially in business (www.merriam-webster.com/dictionary/barracuda
I rest my case!