5Jan20127:36pm, ESTJustin Lane / EPATwo bulls stand in front of the New York Stock Exchange to promote an upcoming bull riding event in New York, New York, USA, on Jan. 5, 2011. Bulls come out on Wall Street even as stocks stay flatBy Rich ShulmanWe're all used to seeing photos of the the charging bull statue on Wall Street, but I prefer the real thing, even if it is a publicity stunt for the Professional Bull Riders' Madison Square Garden Invitational. What's next, live bears?Related:Stocks close day flat; Europe debt still a concernPrivate hiring soars; seasonal issues cloud gain