Intentionally a bit vague...

I live in a diocese different from where I usually go to Church. Our major metro area is split. If I went one or two train stops further east, I'd be in a third diocese.

This is one city, I know lots of people who move between the dioceses for work or school or to see friends.

This leads to pastoral problems. We had a recent petition to the bishop denied because the signers don't live in his diocese. Well they live in neighboring dioceses and when they signed the petition it was before or after attending Mass in his diocese, because, they live some great portion of their lives here, for work or for pleasure.