Things I believe with all my heart and soul: Obi-Wan Kenobi cheats at games. Card games, holoboard games, dice games, space paintball games, etc. You name it, he’ll cheat at it.
And he has such an unreadable face that nobody can ever catch him at it, they suspect maybe a quarter of the time he’s got a card up his sleeve or that he moved the Holo pieces on the dejarik board or that he used the Force to turn over the dice to a better roll, but they can never prove it and eventually everyone who’s known him for longer than a week refuses to play any kind of game with him anymore.
The one time Ahsoka managed to catch him sliding a card up his sleeve for later, she crowed about it for a week, and Obi-Wan had never been prouder of her. (He’s tried to teach Anakin how to cheat at cards, but that disaster just has no sabacc face whatsoever and can’t spot anyone else’s tell to save his life, once he gets going on a game.)