Indeed - the little known evolutionary quirk whereby a human life form can circumvent gravity and chill on the ceiling clearly merits much further peer-reviewed study and may well be considered as an appropriate subject matter for detailed research grant proposals which could yield much by way of large and remunerative grants
On a more serious matter, I am a big fan of a caption informing us of the old reliables, namely, the Who, What, Where, When beneath a photograph. So, OP, apart from yourself, (and I have to assume that one of the two individuals depicted there is your good self, perhaps you could enlighten us as to the name by which your upside-down companion is known to the world?