Party after work

I was working in an office and cut out from work to go out with a friend from work.  We went to a tall building.  There was a restaurant in the top floor and it was full of people.  We saw at a table with a lot of people I did not know but my friend knew all of them.  A band of bagpipers came marching through.  Everybody linked arms and started swaying back and forth to the music.  It came time to leave and I had to get a taxi.