Dwayne “The Rock” Johnson recently got a scare that would rattle just about any man. While showering one Friday night, the 54-year-old actor and professional wrestler discovered a painful lump on his left testicle, sending his mind racing. Days later, his doctor told him it could be one of two things: epididymitis, a common inflammatory condition, or cancer. But with a full day of “Jumanji” promotional appearances on his schedule, Johnson had to wait until the following morning for an