Originally Posted by grumpus

I was given a frame that a customer had done this to - the horizontal dropout opened up to 90 degrees. His insurance replaced it with a new frame and didn't want the old one returned. I stuck it in the vice and had it straightened and aligned in ten minutes, then built it up and rode it for several years. Forged frame ends seem to be pretty tough (replacing them is easy but it's more work to make it look nice).