Missy walks by, eating a chimichanga. “Told you she was a sinner.” Sheldon: “No. She’s a strategist.”

Mary storms out, humiliated. Mary is furious at Meemaw — not for the gambling, but for the lying and the public scene. Sheldon listens from the stairs. He goes downstairs and says: “I calculated that if Meemaw had told the truth immediately, the probability of a fight was 23%. By lying, it rose to 89%. Therefore, her sin wasn’t greed. It was poor statistical reasoning.”

Sheldon: “But greed is one of the seven deadly sins.” George: “So is sloth, but you’ve been in that chair for four hours doing math problems instead of taking out the trash.” Sheldon: “…Touché.” Mary volunteers at a church bake sale. Meemaw shows up with a box of store-bought cookies (passing them off as homemade). Mary is suspicious. Meemaw gets defensive. A loud argument erupts in front of Pastor Jeff. Meemaw finally blurts out: “Fine! I won $1,500 on a scratch-off, and I’m not giving a dime to the church roof fund!”