I want my children to obey me out of respect, not fear.
I agree with a light tap on the bum, or hand if they continually misbehave, after a few warnings.
I hate the people who abuse the fact they have control over a child and use that to smack them over every little thing. I remember some disgusting little chav on the bus had a small child in a pram who was crying. Instead of trying to calm the child down, she full on smacked him round the face whenever he would make a noise.
Some woman at the front stood up and said she was absolutely vile and should not treat children like that. The chav replied, "Fuck off, don't tell me how to raise my child."