I always remember a situation we had quite a few years ago. Close friends of ours from NZ, who we knew from when they lived in England were staying with us overnight on their last night here, we lived not far from Heathrow at the time and were taking them to the airport at next day. A friend of theirs who we did know, but more of an acquaintance to us asked if she could pop in to also say goodbye. She stayed nearly 3 hours. She talked about her job, her kids, her daughter's job which took her to Dubai, her holiday with daughter in Dubai, her daughter's boyfriend, their engagement, her car, her house, her ex, her parents their latest cruise, chapter and verse on all there various ailments. She didn't ask mutual friends anything about their life in NZ, their kids, my son who was still living at home at the time came in to say hello, she just carried on talking about herself. On and bloody on she went, she said it was only going to be a flying visit for a quick goodbye, if we hadn't been going out for a meal, I'm not sure she wouldn't have taken root for the entire evening. I do really wonder about some people's total lack of awareness at times.