Isn't there a guy named Lance lives in Austin; knows something about bikes?

Seriously, are you trying to salvage the crankset? I did this once but was lucky because BB cups on both sides were loose (adjustable BB and I had stripped the crank on the fixed cup side). So I was able to use crankpuller to remove crankarm from opposite side; undo BB cups and pull crank and bottom bracket out using the still attached opposite crank arm. I managed to get the stripped arm free of the BB spindle using a vise and a hammer. I could have reinstalled cranks and rode them I think, but I didn' trust that they would stay secure, so I got new ones ultimately.