@shadowspar I accidentally got through Vancouver airport security with one of those not once but twice a while back (like about twenty years ago).

Went through security once, flight was delayed by about 18 hours (turned out the door to the flight deck has three locks, needs one working to fly, all three were broken so they had to fly a new lock from Toronto to Vancouver before the plane could leave) so they bussed us to a hotel for the night.

Went through security again. Only after the flight did I realise the side pocket of my hand luggage contained my Swiss army knife in amongst a bunch of loose AA batteries, which evidently it looked a lot like on the scanner.

Guessing it wouldn't work these days though.