chances are good to excellent you're Catholic.
Some of us stayed around right after the normal Sat. 9.00 a.m. Mass at St. Anne's. Maybe it comes from going to Catholic school. In the schools I attended for grammar school we routinely attended the funeral Masses if one happened to be scheduled for the same time we would normally go to Mass. [We went to Mass once or twice a week, depending on the school I was in.]
Just me? Or was this routine for you too?