Unenforcable statements. If I were offered a job by a given company, could I go take that part of the contract to a lawyer and see if that part of the contract

Unenforcable statements. If I were offered a job by a given company, could I go take that part of the contract to a lawyer and see if that part of the contract was not-enforceable, and then go off and work in my spare time, holding the lawyer on reserve until the day when they sued me? Because, if I had requirements like that in my contract, I don't think I could work for that company, even if I were in very real need of money. I have entrepreneal plans of my own, and they'd start out as just moonlighting.