I can open beer bottles using only my fingers.  No putting in between your legs as a vice, just set a twist top on a counter/table top and unscrew the top using only a twisting motion with your index finger and thumb.  However, some bottles are tighter than others.  In my vast experience with this project, I concluded Alaskan Brewery beers are usually the hardest.  I shredded many a fingertip mastering this athletic accomplishment, only to impress no one but myself.