I was in a cafeteria and it was packed. I went with my colleagues to have lunch and after scrounging for a big enough place to fit all of us, we found one where just one guy was sitting in the corner. So we sat there and the table got full. We got joined by another of our colleague and since it was full, he had to get another chair and sit. But the another person who subsequently tried to join us couldn't because there was no place. So basically, he was sitting as the know person all around our group. Thought the cafeteria was packed, there was a lot of place for a group of 2 atleast. That person did not give up his seat and sat all the while there looking at us telling our colleagues to find some other place because there is no space here. Is this justified? 