S*** damn it!!

Right there with you Demonracer...and got the t-shirt too.
There's been too many broken carburetor mounting studs and bolts that required drilling out or an easyout.
But the crowning glory was years ago when I broke the block in my '60 340 Swinger while trying to break loose the crank dampener bolt to do a cam change. The hardest part was then having to explain to my wife why I needed a new engine block.