Rats are rodents that cause major problem around the world. They can cause structural damage and can be a fire hazard from their gnawing activities to the building and electrical circuitry, appliances etc. They feed on all kinds of food, and often share human food. When they do, they contaminate the food with their urine, faeces, and saliva. By doing so, the rodents can transmit diseases such as leptospirosis, plague etc to human.