Yesterday I was in the dr's waiting room and watched a mother repeatedly smack her child. The child was very aggressive [I wonder why] and every time he was aggressive she whacked him.
Although illegal in Spain, smacking in some quarters is still acceptable. I am only speaking from my experience in my area and don't want to make sweeping generalisations that all Spanish people smack their kids. There were 4 or 5 other mothers and no one batted an eyelid.