grail

Alan Kay demonstrates GRaIL, a graphical input language system from around 1968 in which hand-drawn strokes become boxes, connections and dataflow-style programs.

The Swamp Castle scene from Monty Python and the Holy Grail, where wedding plans go awry.

The 'She's a witch!' scene from Monty Python and the Holy Grail, in which villagers reason absurdly about how to identify a witch.