It worked for one of my dogs but to tell you the truth another one thinks it is the ketchup for her furniture sandwich.She loves it.It drives me nuts.So I guess it doesn't work for them all.I also found I had to reapply alot.I have heard there are other household items that you can use.Our Leonbergers breeder gave us a list of things they tend to hate so I need to dig it out because she is the one that loves it.I do find if I use something say no and give them something to replace it that is ok to chew they do better.The only problem I have is at night now if they aren't tired enough so on those nights when they are rambunctious at midnight I have to crate them so they no it is bedtime and they can't get into anything..I just love to sleep with them beside me so when they have really run and are beat the 2 that are competely housebroken and generally well trained( so to speak ),finished their first obedience class they sleep with me off course they can go to their crate if they want to.
Laurie