Crazy is being a wack job and not knowing it.

Now if you're an individual that is a bit out on the edge of culturally accepted reality, maybe a bit over the edge, but is aware of that and embraces it, your not dealing with crazy. What you should consider is that such an individual may have an upper hand on the understanding of some things, and such an individual may also have a strong grasp on mainstream acceptable human phsycology and be able to use their understanding of themselves combined with knowing how you think to manipulate any given situation.