Kashima's Marquinhos warned for changing shorts in front of crowd

the quote seems to be criticizing him for being too absent-minded to put his shorts on properly, which seems a reasonable thing for an employer to criticize an employee about

Marquinhos must have been nervous. At least there were no charges of indecent exposal :-)

Japan’s reputation for social propriety

thats pretty funny

”しっかりしてよー” I bet the brazillian had a laugh about that at the after-match party.

Japan’s reputation for social propriety

That's rich, coming from a nation which doesn't bat an eyelid at grown men relieving themselves in public (I've seen them even by major roads, facing the traffic, no less).

What sport are you talking about soccer, baseball?