Sibilant S

I am forever amused by the "Sibilant S" used to coax reluctant infant bladders. Not sure if this is an India-only tradition, but you can often witness anxious mothers, toddlers in tow, making a beeline to the bathroom throughout the day trying to avoid an "outside incident". And inside the bathroom its desperate pleas followed by veiled threats and intermittently the "Sibilant S" to let it go...though only occasionally successful.
Indoctrinated by years of practice what if they really made a sub conscious association - imagine a teacher trying to quieten a class room full of students shhhhh...

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