SACRAMENTO - Growing up in Austria, Arnold Schwarzenegger said he ``got smacked about everything.'' But when it comes to disciplining his four children, Schwarzenegger said he and his wife ``never'' resort to spanking. As governor, Schwarzenegger on Thursday expressed an open mind to a controversial proposal that would ban parents from spanking a child under the age of 3. He hinted that he has concerns about how the bill could be enforced -- ``Is it that when you see someone spank a kid, you go and say, `Can I see the birth certificate of the kid?' '' But he didn't...