A Connecticut Yankee in King Arthurs Court by Mark Twain Chapter 33 Page 15

Well, I was smarting under a sense of defeat. Undeserved defeat, but what of that? That didn’t soften the smart any. And to think of the circumstances! the first statesman of the age, the capablest man, the best-informed man in the entire world, the loftiest uncrowned head that had moved through the clouds of any political firmament for centuries, sitting here apparently defeated in argument by an ignorant country blacksmith!

And I could see that those others were sorry for me — which made me blush till I could smell my whiskers scorching. Put yourself in my place; feel as mean as I did, as ashamed as I felt — wouldn’t you have struck below the belt to get even? Yes, you would; it is simply human nature. Well, that is what I did. I am not trying to justify it; I’m only saying that I was mad, and anybody would have done it.