If there's one thing I've learned from years of standing behind this bar its that the more stupid a person is, the more convinced they are of the brilliance of their words. Only the wise are filled with doubt. I know this was said by someone very famous, I just don't know who. Another thing that I am convinced of is that stupidity and cruelty go hand-in-hand. As proof of this theory, I'd like to tell you about Tubby Tommy. The other night, a few blowhards had gathered at the end of the…