[quote=@MiddleEarthRoze]
[@knighthawk]

Those would have to be some strong fucking cards to cut through to the carotid artery, man.
[/quote]

[quote=@Winter Kitten]
[@MiddleEarthRoze]

There's a lot of physics and math involved to calculate how fast the velocity of that card would have to be to be lethal.

Too much for my brain right now. So... GOOGLE!

You'd have to fling it at way way over 150mph to be even anywhere near lethal. Don't know the specifics tho. Thanks Mythbusters!
[/quote]

Both true points, a simple change on the factors like changing the waxed carboard to hard plastic or any metal alloy and it would be come even easier. But it was an example.