Kel, it's funny you mention using such crude, but effective, methods. A couple evenings ago, I removed some stripped screws from the rear hub of a Yamaha Super Tenere for a guy on the Alaska Highway, using a hammer/chisel. He was returning from a trip to the Arctic Ocean, and had bearing issues, 200 miles from the nearest motorcycle shop.
Just use a light touch, and barely enough force. Oh, and hold your tongue just so.....