We shoot them with our plastic guns.
I fly through Schiphol a lot. Normally things are fine, the security there is friendly, tolerant of humour and alert. However...
One sleepy morning going through the Schengan line one mother with her child are stopped at the X-Ray machine. The child has a plastic flint-lock pirate pistol. The security guy explains that even if it's a toy gun it could still be real and the proceeds to pull the trigger several times whilst pointing the offensive toy in random directions!
What should one do in that situation? Hit the dirt? Laugh? Or just leave the area very quickly wondering and sadly shaking head?
Another time - in San Antonio, TX - Going through the security. I get singled out for a "special" security check. Fine. I get put in some sort of glass walled cage and feel like I'm on show. I ask why this is being done. I get told I'm special and that if I don't like it - to go and complain to airline security rep at the check in desk. Very useful. Not.
Anyways - I eventually get let out and my bag is gone through with various explosive sniffers and such like. I have a small bottle of hand cleaner (alcohol based) that raises his interest. I explain it - no problem. I comply with questions an such like - I've nothing to hide. Anyways - after 10 minutes of questioning and "sniffing" my bag - I'm allowed to go on with my journey and have a pleasant flight. Fine.
I get home some hours later VIA a connecting flight in Houston and similar treatment. I find my 4" lock-back army knife hiding in plain sight in one of the side pockets. I mean - ok - it's green - but no-one commented or saw it. Makes me wonder.