molly-guard

Etymology
From +.

Originally a Plexiglas cover improvised for the Big Red Switch on an IBM 4341 mainframe after a programmer's toddler daughter (named Molly) tripped it twice in one day. Later generalised to covers over stop/reset switches on disk drives and networking equipment.

Noun

 * 1) A physical barrier to protect something from unwanted contact, especially a shield to prevent accidental tripping of an emergency shutdown or power switch.
 * There is a plastic molly-guard covering the escalator's shutdown button to prevent little kids from pushing it and stopping the escalator.
 * 1) * 1998 August 10, kensmark, “Vi versus Word. The pros and cons (or why does Vi remiond me of a bigger version of notepad?)”, rec.arts.sf.composition, Usenet,
 * Therefore, we have many "molly guards," which are kludged covers that protect the on/off switch and keep you from hitting it by accident.
 * Therefore, we have many "molly guards," which are kludged covers that protect the on/off switch and keep you from hitting it by accident.