Entrepreneurs are risk takers, willing to roll the dice with their money or reputation on the line in support of an idea or enterprise. They willingly assume responsibility for the success or failure of a venture and are answerable for all its facets.
Most great entrepreneurs I know are nothing like the other kids. They're almost like tangent lines - those lines that seem to go nowhere. Nothing connects them, until they get out in the real world. Then they connect just fine.