I would say you don't really own your actions but you own your body and can therefore do whatever action you want with it as long as you don't impede someone else's ownership of their own body (slavery). This implies a mind-body dualism which although is not a fashionable scientific position, is a common sense view. This is the basis of libertarianism. Its corollary is everything that is not your body like natural resources, stock certificates and money are not necessarily things you have a right to own and this leads to left-libertarianism.

see http://natrights.blogspot.com/