I know the pub very well and I am not surprised he got up and walked straight in. Its the Purple Turtle, a cheap and cheerful late bar that sells non brand booze. Carlsberg on tap? I doubt it, more like Carlsbug a Eastern European beast of drink which 5+% and normally served with a free Samcuka (non brand Sambuca).
I spent many a night in there after a London Irish rugby match or drifting in there with my customer out who was based nearby.
