How was a runaway slave punished?

They were hobbled and whipped [hobbled means legs broken so they couldn't run away again]. Their punishments were hard and cruel. And some lead till death. Masters would go searching for the slaves with their dogs and (usually) once found the dogs would rip them to shreds. (OH sory T.M.I. haww?) They were punished severely if they ran away once but any more than that, then the owners would have the right to kill them however they wanted.