An interesting little experiment we did at a conference asking to all interviewees the same 'fun' question at the end of the interview: what will you tell Mr Juncker if you were in an elevator with him? Inspiration came from a video from the NHS asking participants what animal would be the NHS (video is here).
The client and I were very happy about the energy of this video, but also about the some elements of substance. An experiment that I will continue!