Max demontrates the operation of the desk drawer.
Drawer of the desk in Maxwell Smart's apartment.
When the lamp on the desk is turned on without using a safety switch the desk drawer opens suddenly giving anyone riffling the desk a stomach ache.
This device is not supplied by CONTROL but at the suggestion of someone Max describes as "a funny little decorator".
[Episode #5: "Now You See Him, Now You Don't" and Episode #12: "My Nephew the Spy".]