Quite true,I have house trained countless doggies,and it is just a pain in the butt. The last one I found in my daughters sock drawer...litterally. Opened it to put clothes away and found a sleeping puppy>.< I get hijacked for this stuff,I don't voluntarily abuse myself with it.Having said this when they look up at you and yawn,start licking your hand...just give it up. Your heart is already lost,and you are thinking about flea collars,and what you can feed him.