Rat are not only a nuisance to any property but also damage and contaminate foods. Rats can damage a computer by eating up its wires, and your computers will not working creating a huge loss to your organization. Rat are nocturnal, but as colony increases they often come in day light also. Rat can be controlled by glue board or baiting multi dose chemicals which keeps the rats away from your home. It is best to call a pest control agency to come and audit your premises and suggest you a comprehensive treatment for rat control.