Don't laugh. Listerine, fart putty, and, if all else fails, keep a cinnamon shaker in your pocket and shake it near their face if they are doing something you don't want them doing. It's not that...
Yes, however most need to be applied daily. Another option is motion activated sprinklers, or sprays. Scat-Cat makes a small compressed can of air with a battery powered top that sprays when...