if 2 foreigners are dumb enough to come to china and get into it with each other to the point of police having to get involved ... both should be kicked out.

Foreigners get into disputes, quarrels, brawls, with other foreigners in China all the time and probably much more than many of us would like to believe.

In another school in my city there was a brawl between two white guys from two different English-speaking countries and yes, the police were called, and my God, what a row.  In the end, it was a little hushed over and neither lost his job .... immediately ... but at the end of the term ... the contracts of both were terminated.  Quite the brouhaha too!