Yes, this should be in the Brake/Suspension forum.

I'm just trying to save what energy I have left.

For starters, it is 98 today. I'm more than a bit from being a youngster. And the rear of the car is in the sun. I have the rear of the XF raised with my brand new Harbor Freight 3 ton aluminum floor jack, stands under left and right jack points. Left rear tire is off. There ain't no stinkin' bleed screw to be found. There does seem to be one sticking out sideways on the right brake.

Is that it?

A yes or no will suffice.

I've gone through all of the brake pages on the '07 shop manual and there are lots of drawings of the right front, but few on the rear. They do mention a bleed screw (singular) regarding the rear brakes.