It Simply Does Not Work in Either the Liquid Spray or Granular Form (bought in bags)
I bought both the liquid and granular form of Cat Mace.  I bought enough granular bags to cover my yard 1/2" deep every four days (my yard is 1800 sg ft, 1/2 the 3600 sq ft each bag is advertised to cover) for a period of over one full month.  I used the spray to cover the rock surrounds and walkways.  There was enough Cat Mace on my property to kill a pride of lions! :)  Unfortunately, it does not deter house cats.  Same places get dug up with fresh bodily deposits almost nightly.  They dig right through the Cat Mace.
Rating: 1 stars