When I began this article, I was pondering why had I put myself through the mildly stressful (dynamic pricing of the chalet booking, the race to book limited places on fun activities), definitely expensive and logistically challenging experience of organising an over-in-the-blink-of-an-eye holiday for the group of adults ranging in age from 26 to 75 who currently constitute my family? The answer, of course, is that I keenly anticipated having some fun. Why though? What does having fun do for us? And what, exactly, is it?