Well I did F up a ring changing my bulb last year. It was not due to being an idiot either (though sometimes that has occured). Could not get the trim ring off, no matter how much break free, gloves, rubber etc.
Had to do major surgery on it and took a punch and put me a little custom notch into the ring where I could get it tapped off with a drift and hammer and it still took awhile.
After all was said and done, found out that the Trim ring was bent into oblong shape due to the set screw had bent it out of roundness at one time or another. So basically trying to turn an egg in a round hole. Sucked for sure but it happens.
Now if someone has a spare trim ring-do not be shy to send it to the hills of WV. If not it will stay on there until I change out the headlight if ever for hell it is a little customizing and war wounds that are always good for a story during a beer!!!