And the internet full of dim fools who gladly pick up the dog whistle and yap away online at the first opertunity.
From the guardian.co.uk
In the meantime, if not for the sake of technical interference, think about the other reasons people don't yap away on their mobiles in critical areas.
From the time.com
Of course, if O'Brien wanted to yap with Davis, he could have gotten away with it without incident.