Rats are common pests found usually in dirty places. You will find them near the dumpster trucks and in garbage disposal areas. These are places where they find food and shelter and from where they spread to nearby areas. Their best target in any neighborhood is the home especially where food is left over on kitchen tops and on the floor at night. Rats have a way of finding unusual entry points to your house using routes you may never think about. Most of the times, they will use open drainage systems and big ventilation openings. Once they are in the house, the process of reproduction begins and you could have very many born out of just two or three in a short time. The biggest question in the minds of those whose houses have been infested with rats is how to get rid of them before they multiply so much. Rats also target restaurants and hotels due to the sometimes low hygienic standards observed there.