Do you hit people?

There are more than a few people here on fluther who support hitting their children. If you do, do you also hit other people in your life (your spouse, friends, co-workers)? If you do, what are the variables involved? Do you hit your spouse only if s/he is smaller than you? Do you only do it when the person does not follow your directions?

If you hit your children but don’t hit your spouse or other people in your life, why is this?