Diana Ross isn’t one for fan pictures at airports. While at JFK the other day, a spy said, “a guy on the escalator ran in front of me to take a picture of Diana with his iPhone.” The singer did not react well, asking the man what he was doing. “He replied, ‘Taking your photo. I’m a huge fan,’ ” says the spy. “She seemed annoyed and said, ‘I’m glad I kept my sunglasses on.’ ” Earlier, Ross was seen telling a handler when she got off a plane from LA how much traveling she has do to. Still, it was a far cry from when she allegedly assaulted a guard at London’s Heathrow in 1999. Ross was annoyed when a female guard tried to do a full-body search, so Ross decided she’d frisk the guard back. She was arrested but freed five hours later without being charged.