I went straight from camp to yeshiva (more or less) so all my bags were still pretty much packed and in my young naivete I didn't think to realize that my sleep away camp things wouldn't exactly fly (literally) on a plane.
So, to the horror of my parents who watching from behind the gate, the guy spent at least 20 minutes putting my bag through the machine again and again each time confiscating more and more including:
1) fireworks
2) a mini tool set
3) a whole array of pocket knives of all sorts and sizes
4) a switchblade
5) a hammer
6) a bunch of other things that I can't recall
At then end, he had to call over a 2nd agent to help him cart everything away, and a 3rd agent came over to me and said if I wanted to keep most of it I would be able to check the bag, at that point I was so scared they would arrest for trying to bring all that stuff I said no thanks and ran as fast as I could to the gate.
Sure enough, when I got my bags in TLV I saw all 3 had been opened and searched with a letter inside telling me so which didn't surprise me at all, if I was them I also would've searched them out of basic caution because clearly I don't know how to pack for an oversees trip.
PS - For the icing on the cake, this was only a few years after 9/11 and I will never forget the look he gave me when he pulled out the switchblade, I truly thought I'd be hauled off to some windowless dungeon.