It was a summer’s evening in Berlin, and although it was only a friendly game and although the vibe was more crusty Kreuzberg than pissed-up Parkhead, nevertheless the pre-season Glasgow Celtic match against FC Union last month promised much in the way of raucously proclaiming my allegiances and even more in the way of gloriously hailing the triumph of the Bhoys in Green (now just remind me once again how you say ‘hail the triumph’ in German). As a prelude of what was to come