Anima Astrologiae or A Guide for Astrologers by William Lilly 1676

The 35th Consideration is, To look whether an Infortune be in Signs like him, or of his own nature, for that abates his ill effects; like a cross fellow when he is pleased and has what he will, as Saturn in Capricorn, Aquary, or Libra, or in a cold Sign, especially if he have any dignities there: and so Mars in Aries, Scorpio, Capricorn, or a hot Sign, &c. But if Saturn be in a hot Sign, or Mars in a cold Sign, out of their dignities, it will be bad, and the business be no more completed, than oil will mix with water; but if strong and well disposed, they will mix in good, like water and wine, or milk with honey.

36.When the Infortunes signify Impediment