Orientals are an “honor” culture.
There is probably no more thorough means of humiliation than “shed ‘em and spread ‘em”.
And you thought that Øbama bowing and kissing the Shiek’s hand was bad....
Yep. Unless the Chinese can provide reproduce-able proof that their commie flu is passed via the fecal-oral route, this is just an obvious attempt to shame and intimidate American personnel.