Not Informing Others Of Your Plans
The president must notify the Secret Service at least four hours in advance if he or she plans to conduct anything outside of their normal routine while in office. One of Johnothan Wackrow’s interviews revealed that the Secret Service was one of the most invasive jobs he had ever had.
Organizing a pickup basketball game for President Obama was unsuccessful because he didn’t inform the Secret Service of his plans in advance. Even in a perfectly secure environment, the president will never be entirely alone.