Enjoy this clip from 2000s Aussie TV Show "Thank God You're Here" which was an improvisation sketch comedy program.

The headline actors would be given a costume and no information on the scene they would be about to step into. The background actors carry the plot along but all the dialogue from Josh Lawson in this case is completely unscripted.

This is my absolute favourite Josh Lawson highlight from his career (well Kano might be a contender)