I had a little trouble with that 20% number myself. How did they actually determine that.....did someone actually pick up a WM multiple times and was only bitten 1 out of 5 times? Stretches the limits of credibility. Maybe thats how the old snake handlers did it in the churches, they used WM.
Excuse me if I don't accept the gentle nature of WM..the only good WM is a dead one.