It's not the danger... it's the fun

Witness: “She said she was really sick, she needed to stay home a few days, but an hour later, I saw her walking down 30th Street… with a man. She didn’t look sick at all.”
Ziva: “Did you get any descriptions?”
Witness: “He was a male.”
Tony: “A male man.” [winks at Ziva]

~ 7x08 “Power Down”