cat's-foot vs soft touch

cat's-foot

noun
  • Synonym of cat's-paw: a foot of a cat; (figurative, obsolete) a person used unwittingly or through trickery by another. 

  • Synonym of mountain cudweed (Antennaria dioica). 

  • Synonym of ground ivy (Glechoma hederacea). 

soft touch

noun
  • A person or group that is sympathetic, accommodating, easily overcome, or easily persuaded, especially one that loans or readily gives money to another. 

  • A comfortable situation; an easy task or undemanding occupation, especially one which is comfortably remunerative. 

How often have the words cat's-foot and soft touch occurred in a corpus of books? (source: Google Ngram Viewer )