Catholic Bishops can suck my ass

I am, very sincerely and without snark, interested in hearing why this is wrong. I have always been under the (perhaps mistaken) belief that being in communion with the church is required for Catholics, and thus one of the reasons why many believers stick with the Church where members of other congregations would simply leave for greener pastures at another Church or denomination. I.e. if a Methodist minister was found to have committed wrongdoing, his parishioners can just go down the street to the Episcopal Church.