From Counterbias.com (click the link for a picture):
GEORGE W. BUSH RUBS MAN'S HEAD FOR "LUCK" IN JOVIAL DISPLAY OF RACIST IGNORANCE
George W. Bush recently displayed a glimpse of his dark side as he partook in a public display of racial insensitivity.
Before speaking to a March 3rd Los Angeles audience at the White House Conference on Faith-Based and Community Initiatives, Mr Bush was introduced by an African-American male, whose head Mr Bush proceeded to rub while grinning and smirking.
The man, identified as Alphonso Jackson, acting Secretary of the U.S. Department of Housing and Urban Development, appeared nervous and somewhat bewildered, while attempting to preserve an appearance of happiness to welcome Mr. Bush.
As an individual identified as Cory wrote in letter published online, rubbing an African American's head for luck was at one time thought of as a "joke amongst those who didn't generally say "black person" when referring to one". He noted that the racist practice "may well have faded into obscurity", but would've been "a good way to lose a hand" in more multi-racial neighborhoods in the late seventies and early eighties.
Mr. Bush has long been thought of by many as a stereotypical elitist with a notably racist, anti-black attitude, but this latest misadventure lends credence to such an assumption.
If the intent was not a racist one, the event did make Mr. Bush appear somewhat condescending, as well as disrespectful of a high-ranking government official.