Baltimore cops are seeking a 16-year-old babysitter and a baby boy in her charge who have been missing for three days. "Put my baby somewhere safe and call somebody. He's probably hungry," the baby's tearful mom pleaded at a support rally yesterday. "It's a 7-month-old baby—you got to have some kind of heart." The baby's dad left his son in the care of Janae Boozer, a "friend of a friend" who stopped by to borrow a cigarette, and he left to buy some at a store, he told police. The teen's belongings and a half-finished baby bottle were left behind when the two vanished, reports the Baltimore Sun. "It's a shame you can't trust people these days," said a neighbor, clutching the hand of his daughter. (More Baltimore stories.)