When it is suspected that another is using scrying to spy on you, it
is possible to baffle their visions or provide them with inaccurate
information. Take powdered gemstones (of a nature in sympathy
with the image you desire to project, or of a mixed sort if you wish
to confuse the scryer) and hold them close to your heart. Declare
that any who seek after you will find only confusion (or whatever
else) cast by the multifaced reflections of the dust. Cast the dust
before you, behind you, and to each side. So long as you remain
in that place, none will be able to scry into your affairs.