An ounce of prevention..(Testing)

An ounce of prevention is worth a pound of cure
expecting shocks and disorder is being mature
keep an eye on supected mischievous blur
that way you would often be sure,
your deeds will endure and allure

Non-repeatable reads

Leaving your plate alone
just to bring a spoon?
flies might come by and hover
you'd better always cover

Phantom read

In your house all is orderly

expecting things as early
till appears a phantom
that would not show
unless you let the door open