LOL. Pre 9/11 I carried a small metal fork, spoon and a 4 inch paring knife with cover similar to this one in my carry on for canned goods, carry out meals and to carve meat and cheese to make sandwichs in the hotel room.

Of course after 9/11 when I '"de-weaponized" my carry on (about 1/3 of the total weight ) I had to leave my knife at home if I had no checked bag and buy one at destination every trip, then leave it behind. (89 cents USD exchange rate at a BKK supermarket ^)

After a while I noticed I had not seen my black handled knife for a couple years. Finally after tearing apart my carry on bag, I found it. I realized it had taken at least one trip to Asia, including connecting thru NRT, without me knowing it was there or TSA or their counterparts ever finding it. Made me realize what a joke the Security Theater is.

Not that such a knife is a hijack weapon after Flight 93, but the TSA emphasis on confiscating grandpa's pen knife and nail clippers with 1 inch files shows their wrong emphaiss on finding things, not finding terrorists. While unknowingly carrying an illegal knife, it never once tempted me to hijack the plane.