Silvia, I did not write about a homemade potion for these animals. The blood based Plantskydd Rabbit And Small Critter Repellant( granules or Liquid Fence Granules also available in spray form) are said to work. I live in the country and my cats keep these pesky critters away from my house. Best And Happy Yardening, Nancy.
There are all kinds of recipes using hot stuff. Do a google search for the particulars. Best And Happy Yardening, Nancy