The Star Doctor

I met a man who said he had an interesting job yesterday, He said he was a star docor, He said many of them just burn out and need injections of plasma, Others turn rotten at the core thinking their light is brighter than the others, They go dim and nedd a good talking to, Some can be prevented from going supernova, If calming measures are used before they get really angry, My failures are the black-holes who have consumed themselves with hate, I travel the universe with talking to them, mending their ways and teaching them their part in things.