Yes I would, not hard and not in excess. A little slap in the rear end is ok and considered legal here in the US, but when you grab your kids by the arm and pull them up off the ground and wack the goo out of them, theres an issue. I think it should be used in moderation, but beating your kids? No..
And very rarley to the other question. Yes, I was, but not very often. I would get yelled at more-so and words hurt more in my opinion.