I was trying to finish something up this AM - it's a pattern on point, and on one smaller end I put on the two edge triangles - and realized I'd put them on the wrong way.
I figured I'd rip them and set it aside as I was out of time (really should have set them aside at that point)
So I ripped them off, and realize on one I'd ripped the triangle from the sashing, and on the other I'd ripped the triangle/sashing and from the next block. It's bad enough to sew something wrong, but then to rip wrong also?