If you step on a crack, you'll break your mother's back.
Step in a hole, you'll break your mother's sugar bowl.
Step in a ditch, your mother's nose will itch.
Step on the dirt, you'll tear your father's shirt.
Step on a nail, you'll put your father in jail.
If you don't wear Oxfords, you'll be a cripple for your whole life.
If you wear heels, you'll break your neck.