I've thought about making a lightning gun that way, before. Unfortunately, a CO2 laser powerful enough to cause dielectric breakdown of air over a useable dist

I've thought about making a lightning gun that way, before. Unfortunately, a CO2 laser powerful enough to cause dielectric breakdown of air over a useable distance is inconvenient to carry; and then making sure the electricity gets grounded through the target instead of the gun's wielder is tricky too.