He [David Whitmer] arrived in Kirtland during the summer of 1837 . . . David . . . was not altogether satisfied with all things and in one instance while conversing with Joseph, David, while this spirit was upon him, insulted Joseph and he slaped David in the face and kicked him out of the yard and it had a good effect and brought David to his senses.
[Source: Kenney, Scott, Saints Without Halos, "Mormon History 1830-1844," http://web.archive.org/web/20120805163534/saintswithouthalos.com/dirs/d_c.phtml]