The propensity of some longtime residents to lose perspective about how good they have it compared to most of the world (and other, less privileged SF residents) and start complaining about trivial shit. SFEB often sets in during the fifth year of living in San Francisco and becomes incurable by the tenth year.
"God damn it! I just missed the N Judah. Now I have to wait four minutes for the next one! MUNI IS THE WORST PUBLIC TRANSIT SYSTEM EVER!!! AAAAARGH!!!"
"Sounds like somebody has a case of San Francisco Entitlement Blindness!"