Soo, Chciago is being called the "Rattiest" city in the US. We have the most rats per our population. We are followed by NY, LA, Washington DC, and Philly. BUT...maybe it's a good thing because we can put them to work as Uber or Lyft drivers. lol! Apparently scientists have discovered that rats like to drive tiny little cars to help them relax. I'm not kidding! Take a look....