Since a Chinese graduate student at Columbia University, Minghui Yu, was killed last Friday when black youths violently set upon him, sending him running into traffic to escape, I think B. Hussein Obama ought to start referring to the mind-set of the "typical Asian person."

As of Wednesday, police had no motive for the attack, and witnesses said they heard no demand for money or anything else. The Associated Press reports that the assailant simply said to his friend, "Watch what I do to this guy" before punching Yu.

Meanwhile, let's revisit the story about Obama's grandmother being guilty of thinking like a "typical white person." As recounted in Obama's autobiography, the only evidence that his grandmother feared black men comes from Obama's good-for-nothing, chronically unemployed white grandfather, who accuses Grandma of racism as his third excuse not to get dressed and drive her to work.

His grandmother wanted a ride to work at 6:30 in the morning because, the day before, she had been aggressively solicited by a homeless man at the bus stop. On her account, the panhandler "was very aggressive, Barry. Very aggressive. I gave him a dollar and he kept asking. If the bus hadn't come, I think he might have hit me over the head."

Even Obama's shiftless grandfather didn't play the race card until pretty far into the argument over whether he would drive Grandma to work. First, the good-for-nothing grandfather told Obama that Grandma was just trying to guilt him into driving her, saying, "(S)he just wants me to feel bad."

Next, he complained about his non-work routine being disrupted, saying: "She's been catching the bus ever since she started at the bank. ... And now, just because she gets pestered a little, she wants to change everything!"

Only after Obama had offered to drive his grandmother to work himself and it was becoming increasingly clear what a selfish lout the grandfather was, did Grandpa produce his trump card. The reason he wouldn't get his lazy butt dressed and drive Grandma to work was ... she was a racist!

As Obama recounts it, on Grandpa's third try at an excuse, he told Obama: "You know why she's so scared this time? I'll tell you why. Before you came in, she told me the fella was black. That's the real reason she's bothered. And I just don't think that's right." So I guess I'll be heading back to the sack now!

That makes sense. It certainly never bothers me when crazy white people harass and threaten me.

This is Obama's own account of what happened, which -- as anyone can see -- consisted of his slacker grandfather making a series of excuses to avoid having to drive the sole bread-earner in the family to work.

But Obama says, "The words were like a fist in my stomach, and I wobbled to regain my composure." (It was as if he had been punched by an aggressive panhandler at a bus stop!) And not because his grandfather's sorry excuse reminded him that he came from a long line of callow, worthless men, both black and white.

No, Obama swallowed his grandfather's pathetic excuse hook, line and sinker, leading Obama to a reverie about his grandparents: "I knew that men who might easily have been my brothers could still inspire their rawest fears." That's true -- assuming his brothers and sisters were menacing people at bus stops.

How deranged would you have to be to cite this incident as evidence that your grandmother thought like a "typical white person" -- as opposed to your grandfather being worthless and lazy? For those keeping score, Obama is aghast at his grandmother's alleged racism, but had no problem with Jeremiah Wright's manifest racism.

If Obama is sent reeling by the mere words of an elderly white woman, how is he going to negotiate with a guy like Mahmoud Ahmadinejad? What if Ahmadinejad calls him "booger-face"? Will he run crying from the table?

Your grandmother wasn't a racist, Barack. Your grandpa was just a loser. Can we wrap up our national conversation about race now? I think we'd like to move onto questions about your stupid plan to hold talks with Iran.