Re: Not THAT realistic
You did read the bit about how the perp did _not_ have the faux firearm in his hip pocket as the photo shows. It was found during a routine security check. Perhaps whilst x-raying his carryon luggage? We don't know actually.
Stansted (no spellcheck, it's not stagnated) does tell people that toy guns and replica weapons may not be carried in hand luggage, although if you saw the whole thing in an x-ray, instead of just part of it, maybe you wouldn't be nearly as quick to pop a few rounds into the twit. Or maybe you would!