A truck has hit the streets of New York selling DNA tests to passersby. The "Who's Your Daddy" truck caters mostly to men who aren't sure their children are their own, CBS News reports. "They flag us down, they pull us over, they talk to us," says its owner. The nature of the business means "constant drama," he adds. All that's needed is a cheek swab and a few days' wait; the process costs from $299 to $575. But it's not just about testing. "Half the job is to be a psychologist to folks," says the owner. Click to read about another NYC street gimmick of an adult nature.