Handlers go to great lengths to manage the settings President Obama appears in, from lighting to yes, even insect repelling. For example, they doused a Camp David podium with bug spray last year before a G-8 announcement. But there have been moments, several in fact, when insects have bedeviled their best efforts. As the president announced his nominees to lead the Securities and Exchange Commission and the Consumer Financial Protection Bureau Thursday, a fly noticeably buzzed around the commander-in-chief, distracting him to the point of his noting, "This guy's bothering me."