I'm generally neutral towards strangers, making an active effort to not start friendships or forge enemies. When confronted with a exploit or an opportunity I take it, regardless of the consequence it has on others. This being said, I've commited mild forms of extortion and black mail all for the purpose of personal gain. I don't discriminate really, the reason for my neutrality. Everyone is a potential gain, with the exception of a handful. I respect these individuals opinion and will occasionally go out of my way to watch over them.
Do you have people in your life that you won't cross and if so what are the reasons why.