Get from a store four small mirrors and one larger one
Powder compacts will do-DO NOT CATCH YOUR REFLECTION IN THEM!

When you get home cast your circle and take the four and place them in a square face down on a Black cloth.

Take the larger mirror and look into it, think about all the nasty things that can happen. Meditate on everything negative and painful you can think of, Fire, shootings, the whole bit Remember your nightmares, push them into the mirror.

Wash each of the small four in salt water
Voice your intent, something like
"May those who seek to harm anyone on this property,
Those who seek to give offense reaching this circle of protection be struck back by their own forces.
whether material and mundane
Whether spirit or beast
Whether legal and law-full
Return to whence you came
FInd other pursuits
other interests
forget this place,
Forget these faces.
Return to your place unmindful of your wants here.
begone, banished ."
Take the mirrors out and at the corners of the property,
dig a small hole and place each small mirror (don't catch your
reflection!) with the mirror side outward then fill in the hole! continue Counterclockwise with the rest.
return to the big mirror. Wipe saltwater over it and say.
"This is XXXXX, (say your name)
I put my name and my image to this glass that all harm may find it and not me"
Turn the glass over a cloth and smash it from behind.
Put all the glass into a large jar with nails bits of metal and your urine and bury it on your property.