There are a number of attractive women at the school in which the Single Guy works. As a rule, he does not think of any of these women as potential dating possibilities. For one thing, only a select few are single. For another, workplace relationships seem extremely complicated at best. Unless you happen to be named Jim and Pam.
This doesn't mean the Single Guy doesn't notice an attractive woman in the workplace when one crosses his path. This is where the Single Guy found himself recently: noticing an attractive coworker which placed him in a precarious and somewhat embarrassing situation.
The elementary school is a two story building. The Single Guy traverses the stairs in the building multiple times each day. One would think that after three months he would be able to climb the steps without incident. That's usually the case. Until you add a pretty girl to the equation.
As the Single Guy ascended the staircase one of those pretty teachers was descending. Now, as socially awkward as the Single Guy is, he is still capable of saying hello to a member of the opposite sex. But saying hi while distracted by beauty caused him to accidentally miss a step.
That's right. He tripped.
She reached out to grab the Single Guy's arm in an attempt to save his life. He didn't really fall, just stumbled a bit. But tripping up the stairs in front of a pretty girl felt pretty humiliating.
As if that wasn't embarrassing enough, Mr. Socially Awkward apologized to the girl for his own clumsiness. Looking back, he had no idea what he had to apologize for. He hadn't hurt or offended her. But he felt the need to say something and said the wrong thing. Par for the course.