I met a red-neck American priest once carrying a bag of cement. He introduced me to his sibling, child and spouse. Surprisingly...

they were quite smart for a ten-year-old downs syndrome choir-boy.

If you need the explanation: He got his mum pregnant with a baby boy who would, in turn, be his son who he then married.

Boom! A joke at the expense of a nation, homophobes, red-necks, priests, paedophiles, the disabled and...

What about the cement? I threw that in there to make telling this joke harder.