In the words of John Cleese\u2019s beautifully disturbed, halfwit character Basil Fawlty, \u201cListen, don\u2019t mention the War. I mentioned it once, but I think I got away with it alright.\u201d Then he goose-stepped around some mortified German patrons as a British laugh track acknowledged how funny the whole thing was. Conor McGregor took a run at some WWII-styled comedy a couple days ago, calling Dennis Siver a Nazi on Twitter. Unfortunately, Twitter doesn\u2019t offer a laugh track add-on, and Conor hasn\u2019t mastered Cleese\u2019s art of ridiculous walking. Now, Nick \u201cSergeant\u201d Hein, the UFC lightweight who happens to be a police officer in Germany, is expressing his displeasure with Conor\u2019s failed jest. \u201cHe overstepped the line there definitely,\u201c Hein said. \u201cHe realized that himself and apologized. But with apologies it is like in a relationship. If you betray somebody once, the mirror is broken forever, even if that somebody forgives you. What Conor said didn\u2019t happen in the heat of the moment, he wrote it on Twitter with enough time to think about it first. I am sure he had history lessons in school, so he should know better. Now Dennis will take him on and who knows, maybe that whole problem will solve itself?\u201c\u00a0 Of course, the subject matter is no doubt disturbing for a people that prides itself in being far-removed from the oppressive regime that definied its existence for a while in the 1940s. But perhaps the problem here is not so much the subject matter, but the comedic sense of the man telling the joke. After all, esteemed comic John Cleese created the defining episode of one of Britain\u2019s most hilarious shows while holding up a faux Hitler mustache and making a young Fr\u00e4ulein sob. \u201cNot funny? Not funny? You\u2019re joking!\u201d Cleese yelled, ironically, as the characters on screen became angry and the audience at home cried tears of joy. \u201cYou have absolutely no sense of humor, do you?\u201d he continued. \u201cThis is not funny!\u201d cried the baffled guest. \u201cWho won the bloody War anyway?\u201d Cleese rebutted. Unfortunately, McGregor is no John Cleese, he hasn't displayed any capacity for ironic flair, and he should ultimately heed the advice of Basil Fawlty. Whatever you do, don\u2019t mention the War. At least not until you\u2019ve had some comedy lessons from the British master. Hein fights TUF veteran James Vick at UFC Fight Night this Saturday.