We put a lot of pressure on an emotion that can be just as easily evoked by a warm donut — I grew up in Houston, Texas, which is to say, I have tasted the world’s best donut. Shipley Do-Nuts: sweet, pillowy poufs of buttery gold that make all other donuts taste like old tires. Maybe I’m exaggerating, but only a little. One morning during a lull at work, a coworker…