Arghhhhh!

See that eye on the left?
That plum-colored patch is about 2 inches across. It's loaded with satin stitch. about 2mm wide.
Just a little too narrow to fit the blade of my seam ripper into...
How do I know this?

Because as I was stitching this...

...I neglected to see that THIS was happening...
Ripping out satin stitch, with a layer of batting in between really sucks. :P