Not including getting chucked out or competing to see how many pubs you can visit in an evening, etc. In other words, how long after you realised your presence could be a problem did you make an exit? In my own case, it was mid 1970s, working for Camden Council in North London, and I had to make occasional home visits to tenants of privately rented flats. On this particular day I had to visit someone who lived on the edge of the borough very close to Kilburn High Road station on the Watford DC line from Euston, and, my office being on Euston Road, it seemed the easiest way of getting there. I realised when arriving at KHR I had about half an hour before my lunchtime appointment at an address less than five minutes walk away, so I called in a pub near the station, from which a buzz of conversation could be heard through the door. As soon as I entered, I realised my big mistake. Every person in the pub, and there were about thirty or forty, all men, ceased talking at once and turned to stare at me, an interloper carrying a Camden Council issue briefcase. To say the looks weren't friendly would be an understatement, the phrase 'looks could kill' came to mind, but fear propelled me to the bar and my response to the curt 'yes??' from the barmaid was 'half of Guinness please' as, in fact, every tap seemed to bear its logo. Not only have I never drunk a Guinness so quickly (no mean feat!) but anything at all. I must have been out of that pub 90 seconds after entering it,and as soon as the door closed behind me animated conversation continued. Your own experiences?