Dangerfield in Coma After Heart Surgery LOS ANGELES - Rodney Dangerfield has been in a coma for a couple of weeks after undergoing heart surgery, but has begun to show some awareness, his wife said Monday.    The 82-year-old comedian was stable and had been breathing on his own for 24 hours, Joan Dangerfield said in a statement released by the comic's publicist, Kevin Sasaki...