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).

They're giving you hints and tips.

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

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.