if you hand to a justice a document, with a blank reverse side, he could claim he see's nothing. you apply the stamp on the reverse (blank) and sign/autograph/cancel it in red ink (strike through).
Printed copy · Anthology Volume 4, page 665Printed copy from The Tender For Law Anthology, Volume 4, page 665 (printed 13 June 2014). Added by this site; not part of the Facebook export.