I am not an attorney, nor do I play one on TV.

In US common law there is the concept of mens rea (c.f. http://en.wikipedia.org/wiki/Mens_rea ) that states that a person much possess some degree of a guilty mind, as defined by a jury of his or her peers, in order to be guilty of an offense. Were I on the jury, none of the scenarios described would rise to the level of mens rea.