You can humorously reply to the group to let them have a cat at home, or buy some rat traps, rat cages and other tools to solve the problem of rats themselves, as the property owners have no way to go door-to-door to help catch the rats, and I hope that the group can understand.
Rats can eat almost anything, any place can live, in the place of bacteria and clean places back and forth action, waste food, spread disease, the harm to human beings is very great, this is also the "street rats everyone shouting" reason. But from the ecological balance, this pest can not be eliminated, only prevention and control of the main, to achieve a harmonious **** survival of the state of man and rat.
Destruction of transportation facilities
Rats on industry and transportation hazards, mainly in the destruction of precision electronic equipment lines, electrical fires and other aspects. Rats stationed in the dyke holes, resulting in pipe surges dike events have been documented; there are also due to rat damage caused by the ship's rudder malfunction and the ship's events have also been documented.
Consumption of food hurt farmers
Grains are good for rats, according to the World Food and Agriculture Organization (FAO) survey, the global annual loss of 33 million tons of stored grain due to rat damage, reducing production by 50 million tons, enough for 300 million people to eat a year.
Destruction of homes
Because rats need to chew on things to grind their teeth, and need paper and fabric for their nests, destroying clothes and furniture is a common occurrence. There was an incident in a hospital's herbal pharmacy where rats were so eager to waddle that they stole the hospital's prescriptions.
Transmission of diseases
Rats can transmit pathogens of diseases that can infect both humans and rats to humans through different ways, making them sick. For example, fleas on rats can spread plague bacteria to people by biting rats that have plague and then biting people. Rat feces have epidemic hemorrhagic fever virus, people can be infected by inadvertent contact, and so on.