Effectiveness of a knife breaking glass? Emergency preparedness?

[JAfromMN]

Evil beat me to it.

I carry a piece of spark plug in my gear.

Watch evils videos to see it in action.

It really works and costs nothing but a old spark plug.

[Evil D]

Now it has me wondering how a ceramic bladed knife would fair against a window. I wouldn't be surprised if the blade snapped, but I wonder if you sharpened it well enough if just hitting the edge on the glass would be enough to break it, or if the broken porcelain is just that much sharper and acute than you could manage in sharpening a ceramic blade.

[Larry_Mott]

Kudos to Michael Janich for researching, still i third Tom Aiello :)

[Blerv]

Evil beat me to it.

I carry a piece of spark plug in my gear.

Watch evils videos to see it in action.

It really works and costs nothing but a old spark plug.

I wouldn't want to be found with that anywhere on me. I understand it's considered a burglary tool in many places.

I hear a golf ball will break windows though. And ya know...that's just a silly sport :).

[Evil D]

Yeah, you can only explain away so much, and having a broken spark plug in your car might look fishy.

Me personally, I'll just throw an entire busted up spark plug in my tool box. That way the whole thing is there, in my tools that I work on my car with. That at least looks like it may have just been trash from doing a tune up.

[Blerv]

Yeah, you can only explain away so much, and having a broken spark plug in your car might look fishy.

Me personally, I'll just throw an entire busted up spark plug in my tool box. That way the whole thing is there, in my tools that I work on my car with. That at least looks like it may have just been trash from doing a tune up.

Good point there. :)

[Dr. Snubnose]

Spark Plug thingy is very impressive....Thanks... Is it too presumptuous of me to assume it will work as well from inside the car?...Doc:)