Oh....
Bother.
I assumed.
LOL!
I bought a small pocket knife for my ex-GF a couple years ago and forgot to put it in my checked bag. So into the trash it went at the TSA check. Grrr... My error though, both then and now.
On edit: In my defense, I seem to attract attentive security people at airports. I got busted for carrying a half full 120 ml container of shampoo. So I had about 60 ml of shampoo in a container that exceeded the standard by half an ounce. And they had me throw out the shampoo. I did not even know shampoo came in 120 ml containers.
And my entry into Australia was much worse than that.