Before he
goes to the Perk, Bad Ash walks casually into the clinic, under the guise of Ash's normal Drug Guarding duties.
He wanders into the room with the P.A. System, and inserts a
certain CD into the Muzak system.
He then sets it to repeat, and carefully disables the controls. Including the eject button.
Bad Ash walks out, grinning, to the quiet strains of "Little Bunny Foo Foo CLANG Hopping through the forest..."