I'm in a public place. A large baby, not yet toddling, is making a fuss. Every 5 seconds or so, he makes a shrill, parrot-like squawk.
"EHHH!" 5 seconds. "EHHH!" 5 seconds. "EHHH!"
His mother decided to join in the squawking. In the five second interval between the squawks, the mother mimicked her baby, with the same loud volume and irritated intensity. For about a minute, the entire room was treated to this nonstop duo of annoying squawking.
Then, a wonderful thing happened. A small and angry girl, around 4, stomped up to the noisy twosome and yelled,
"Keep your baby quiet. GAWD!"
Even a four year old knows that you don't encourage a fussy baby to keep squawking.