They are trying to get inside, trying to get out of the cold, like you and me.
21 million rats, mice and other rodents enter homes in the United States every winter, and they breed so fast that before you know it, you could have a genuine infestation on your hands.
"They are looking for food. They are looking for breeding spots," said David Pence of Allied Pest Control. "They are looking for anything that is warm. They will go underneath a house, they will go in an attic and between the walls."
Enter Chris Vernon, the host of the self-titled "Chris Vernon Show" on 92.9 ESPN. Vernon has been waging a war on vermin in his house as he discovered the home had roof rats earlier this year.
Vernon on vermin.
"Scratching, clawing, nibbling, you know, sounded like rustling around and then a lot of scratching and 'kee kee kee kee,'" Vernon said while making a digging motion.
Once you hear them inside the house, vermin can do a lot of damage, so you have to stop them.
"They like to chew on things," Pence said. "Being rodents, they will chew on anything, wiring especially, and it can cause fires. They will chew through sheetrock walls and go to the bathroom on everything."
"It's been a big pain because at first I thought my wife was hearing things, but then I realized the vermin were real," Vernon said. "I had to become an exterminator Tom Dees, and that is exactly what I have done."
In some cases you will have to call in an exterminator, in other cases you may be able to get rid of the vermin yourself.
"Well the baits work, they are very similar to what the pest control companies use," Pence said. "They use a brand that is flavored differently, and they know where to put the glue boards and snap traps. In some cases you put out two or three snap traps in a row and if they jump over one, they land on another."
"I have sent a message to all rodents, rats and general vermin, that the Vernon household is not to be accosted," Vernon said. "If you are going to enter this household, you will leave dead."
Vernon says the scratching and clawing have finally stopped in his house a few days ago. For now, he thinks he has ratted out the roof rats using big rat traps.
"This is the weapon of destruction Tom, and for anybody out there, this is Man vs. Beasts, and Man wins," a smiling Vernon said while holding up a large rat trap. "But you must have the courage to win, and in Man Vs. Beast, the stakes are high. This will be a nuisance to your life."