Overheard during the Phillies game

After telling the story about the ghost tour and the boy whose ghost comes out of the Chicago River when a woman who is: (1) pregnant or a mother; and (2) has a birthday in the third week of March walks by, one of my guests (who happens to be pregnant), says that she can't be our ghost tester because her birthday is in January. One of my other guests says, "my birthday is in March, but I'm not gonna get knocked up for this."