The single funniest moment in our gaming group did not occur as a result of a gaming situation but rather a snack at the table. In our household my wife and I can never agree on milk, as I prefer the taste of whole milk or 2% while she goes for the healthier skim milk. Consequently, whenever either of us uses milk in a recipe we use the kind that we prefer ourself.
One day, a few weeks after our daughter was born, she cooked up a batch of brownies for the weekly game. After they were served the group began to devour them, complimenting her on how good they tasted. She then said "And they're even healthy for you, because I made them with my milk." As everyone began to either gag or spit out their food she realized what she had said, and quickly explained that she meant skim milk.