What jokes did Mark Twain tell about bankers?

In life, Mark Twain didn't like bankers. He said, "A banker is the kind of person who lends you an umbrella on a sunny day and takes it back as soon as the weather changes." He told a joke about a banker. A banker spent a lot of money to install an artificial eye, which is fake enough. One day, the banker said to Mark Twain, "I bet you can't tell which of my eyes is true and which is false." Mark Twain pointed to the false eye and said, "There is no need to bet. I can see it at a glance, because only your eyes still shine with humanity and charity. "