(I am stocking shelves in my store when a customer walks up to me.)

Customer: “Do you know why Clorox is called Clorox?”

Me: “Possibly because its active ingredients include chlorine and oxygen atoms?”

Customer: “There’s no oxygen in Clorox! That’s what we breathe! You kids need to go back to school, cause you ain’t learnin’ nothin’!” *storms away*