Joint ownership

http://leedrurydecesarescasting-roomcouch.blogspot.com/2010/01/john-d-gets-his-comeuppance.html

The Council of Trent Goes to the Mattresses in the Crossfire of John D's and Bart Birdsall's Nitpicking Joust;

There is only one joust, so it must be jointly attributed to John D and Bart Birdsall.

Edit: the crossfire of John D and Bart Birdsall's Nitpicking Joust

Ding! Yet another round goes to Antigrammargrinch on points. Bart won't even don his gloves.