Two little boys are looking for a way to cool off
  on a hot summer day. Dad won't let them play in
  the sprinkler because he is
  mowing the lawn, so the boys set out to find a way
  to get wet and cool without getting into trouble.

  They sit on the curb brainstorming when suddenly
  one stands up and says "I know, lets get baptized!"

  Well, both boys have seen enough to know that you
  can get wet at a baptism, so they trot down to the church
  on the corner and tell the pastor they want
  to get baptized. The irritated pastor finally
  relents after about 10 minutes of begging, and he
  finally drags the boys
  to the men's room and dunks them both head first
  into the toilet, then sends them on their way.

   One of the boys says, "What religion are we now?"
  "I don't know" replies the other "If we were
   Baptists, he would have filled up the big tub and
   dunked our whole body
   like he did for uncle Jim, and if we were
   Catholic, he would have
   poured it on our heads from a pitcher."

  They sat and thought about it for a while longer
  when the first one said in a small voice, "Since
  he stuck our head in the toilet, I think that it means we're
  'piss-ca-palian."