Do you know Bad Habit Marvin? He bites his nails and grabs dog's tails, and stubs his toes and picks his nose, and burps out loud (it makes him proud) to grind his teeth and smell his feet and shake his head and wet his bed. He tickles girls and yanks their curls and steals their books with dirty looks. He never washes or wears galoshes, or helps mom cook or reads a book. Bad Habit Marvin, you know him well, And every time he's near, you yell, "Bad Habit Marvin, why ya act so dumb?!" But he can't answer back 'cause he's sucking his thumb