is it shankable?

Learning to do this is an important part of education for our college-bound youth.

Edumacational!

Handy, but I have a feeling it only works on cheap beer in thin bottles which are pretty brittle to begin with.

I wanted this to get through the Hopper just to point out that breaking bottles isn't really that unnecessary a skill.

i would like to see a youtube series titled WILL IT SHANK? in which a lovable grandfatherly scientist character improvises stabbing devices from a variety of common items and then tests the stabbability of said shivs.