Ditto ICN.
They x-rayed my backpack twice, let me go, then while I was waiting to pass immigration (to exit the country) they called me back and x-rayed my bag a third time. Then they removed my toiletry bag and other items from my pack and x-rayed those separately. Finally the agent opened the toiletry bag. I was worried about my newly bought Solingen nail scissors, but she ignored this and went for a tiny sewing kit that had a pathetic 1-inch blade with rounded tips. She held it up, smiled at me and asked "Throw away? Not allowed on plane."
Really weird, I've flown with this kit for years without ever having a problem.