This guy uses a couple pistols to chop his thumbs off.
Well, OK, he cuts himself on the horned slide (if you dehorn a gun, a non-dehorned gun is horned, right?)
I’ve done this in the past with a glock 21 and 30, but I wrapped my hand around the slide. I never did it using a single finger on the back of the slide. This video was posted in response to some panty-twisting about 22 caliber pistols breaking thumbs; both Lyle and Joe have shot my Buckmark with full-power 22lr loads to no ill result.

12 January 2010 at 9:27
[...] Tip: Ry’s Blog [...]
13 January 2010 at 0:21
[...] after some pain, it seems you can. Do not try that at home. Also, when I shoot my suppressed Walther and want it extra quiet, I place [...]