Smoke rings from a toy gun don’t do much more than entertain a child. But by giving them an electrical charge, a company called Battelle has discovered a way to make them more useful for firefighting and even crowd control.
Looks like you screwed with the wrong old man today, punk. I may look grey and infirm, but I’m packing a million volts of incapacitating, jaw-clenching self-defense. Or offense! This grandpa’s crazy! The Zap Cane also has a flashlight. Beware!
