Okay I got one. And it works. Just don't be to close sometimes you get a little reaction. If you horse tends to rub his tail or is rubbing a simple dose of listerine will usually do the trick. Sometimes 2 application but will clear it up and stop the intruders.

I have also seen my wife use it on the brushed in a diluted bucket so many people just pick up a brush out of your groom box if you don't keep it under lock and key.

Hope that helps.