If you have spotted a rat in your home, the odds are high that there is more than one. By the time you see rats, there are probably several of them lurking. If you have only seen tell-tale signs of an infestation, such as feces, bite marks, or grease marks, you may not have a huge problem yet. However, whether you are faced with a single rat or an army of rats, tackling the problem by yourself is not a great idea.