Thieves, beware: don't mess with Mehrtash Mandana. The NY Post reports Mandana was standing at East 95th Street and typing e-mails on her BlackBerry when a teenaged bandit grabbed the 32-year-old real estate agent's smartphone right out of her hands. Mandana, unfazed and pissed, took off after the pint-sized pickpocket. She tells the Post: "He was a little runt. I went up to him and punched him in the shoulder. The cops had to pull me off him." The vigilante real estate agent—who apparently has better luck with this sort of thing than some movie stars—was ultimately able to retrieve her BlackBerry after a nearby security guard tackled the 14-year-old snatch-thief.