Like a rolling version of The Maury Povich Show, a bus-sized mobile lab is selling paternity tests for anybody who wants them. WCBS-TV reports the "Who's Your Daddy" vehicle is cruising the Big Apple -- and coming in handy for dads who suspect their kids may not biologically be theirs.  

"We have people that want to get the specimen from their spouse without them knowing about it," owner and operator Jared Rosenthal told a reporter who went on a ride-along Wednesday. "We deal with a lot of drama, it's constant drama."

Rosenthal says he's very busy. "They flag us down, they pull us over, they talk to us." The truck's services have determined some dads were toting around -- and supporting -- babies that weren't theirs to begin with. "It's not something people talk about, but there is a big need for it," Rosenthal said.

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