I have threatened my son, Tubby the Shih Tsu with castration if he so much as even LOOKS like he wants to hike that little leg in my house. Works really well cause he never has and he's eight. My little boy Raymond the tom cat had to have the threat carried out because he is hard of hearing.
But, I use Gain detergent and put some vinegar in the first rinse and the Downy in the second. it works for me.