A teacher asks the class to name things that end with 'tor' that eat things.
The first little boy says, "Alligator." "Very good, that's a big word." The second boy says, "Predator." "Yes, that's another big word. Well done." The third boy says, "Vibrator, Miss." After nearly falling off her chair, she says, "That is a big word, but it doesn't eat anything." "Well my sister has one and she says it eats batteries like there's no tomorrow!