Me: only for really dangerous situations (such as running into the street) or as a last resort when nothing else will work, and a few smacks with an open hand on the seat of the pants (not a bare butt) should suffice (well that's what I usually got).
Russia (ivan_x_toris): I do enjoy beating up on my Baltics, but I do not know if I would call it "corporal punishment." More like "enforcing my previous verbal commands when they are not responded to adequately." I also tend to do it when having sex with them. However, I would never hit or hurt a woman in any way, unless she wanted me to (i.e. if she was into that kind of sexual play).
(this Russia is nicer than other Russias and is against any kind of non-con violence against women (meaning that consentual rough sexual play is ok but nothing else), but he does have his evil side as well kolkolkolkolkolkolkolkol (-J-) and is generally creepy to everybody)