[cgs1019]

I've always been amazed that with all the effort to keep "dangerous" objects off the plane, they still hand out aluminum soda cans which can easily be crushed/bent/torn into quite dangerously sharp forms. Why bother carrying a weapon on board when they're provided free of charge in flight?

[Terretta]

> aluminum soda cans

LOL (and I don't use that lightly) ...

Many airlines bring you silverware with your business or first class meal. A metal fork, spoon, and yes, KNIFE.

Several also serve beverages in glass, including stemware.

And many items taken from you at the security line can be purchased in the concessions: batteries, lighters, even fuel (vodka).

[mgkimsal]

but people in first and business class are just so nice - they couldn't be a terrorist!

[JonnieCache]

Last time I was on a plane I'm fairly sure they still said "When putting bottles of wine in the overhead compartment, please be careful because if they fall out onto people it can be dangerous."

They're giving you hints and tips.

(Also chlorine-based cleaning products are readily available from the cleaner's cupboard in the departure lounge.)

[caseysoftware]

I have a Founders Card. It's just a little credit card sized membership card... made of aluminium. The edge is sharp. I've flown over 40 times this year and haven't been stopped even once.

I've tested TSA quite a few times and documented it all. I don't post most of it online though.. I'd hate to get it misinterpreted. ;)

I share my antics on Twitter via the #fuTSA tag.

[zeteo]

If you can make a shiv out of a soda can, I'm sure there are a lot of high security inmates who are very interested in your recipe.

[Joakal]

The prisoners would be more interested in lock-picking. Here's an example: http://www.wikihow.com/Make-a-Padlock-Shim