Satan
... that Satan frequently appeared as a comic relief figure in late medieval mystery plays, in which he "frolicked, fell, and farted in the background"?
... that <b id="mw4g"><a href="./Satan" id="mw4w" rel="mw:WikiLink" title="Satan">Satan</a></b> frequently appeared as a comic relief figure in late medieval <a href="./Mystery_play" id="mw5A" rel="mw:WikiLink" title="Mystery play">mystery plays</a>, in which he "frolicked, fell, and farted in the background"?