your friend is carrying a bag of chickens over his shoulder, and you ask him, "if i guess how many chickens are in that bag, will you give me one?" And your friend says, "Shooot! I'll give ya both of 'em"
If your teenage daughter gets pregnant, and the list of possible fathers is at least as long as a football roster. And you are related to half of them. And as you examine the list, you wonder what their best time in the 40 is.