Thomas Nast caricature of American author and journalist Mark Twain (1835 - 1910) for Harper's Weekly,' which depicts Twain on the Canadian side of the U.S.-Canada border, January 21, 1882. (Photo by Kean Collection/Getty Images)

When I worked at the Mark Twain House and Museum, my boss used to say to me, “You work for the greatest American humorist. Are you having fun?”

I loved that he asked that question, and I think it’s important to ask ourselves that now and again. And if the answer is ever no, we need to figure out how we can change that–either by changing what we are doing or, if that is not an option, changing our attitude.

So, are you having fun?