Let an Earth based committee make up rules for it.
This article appeared in the Seattle Times:
Gennady Padalka told the Novaya Gazeta newspaper as saying space officials from Russia, the United States and other countries require cosmonauts and astronauts to eat their own food and follow stringent rules on access to other facilities, like toilets.
Padalka, who will be the station's next commander, said the arguments date back to 2003, when Russia started charging other space agencies for the resources used by their astronauts. Other partners in space station responded in kind.
He said he had inquired before the current mission whether he could use an American gym machine to stay fit.
"They told me: 'Yes, you can.' Then they said no," he was quoted as saying. "Then they hold consultations and they approve it again. And now, right before the flight, it turns out again that the answer is negative."
While sharing food in the past helped the crew feel like a team, the new rules oblige Russian cosmonauts and U.S. and other astronauts to eat their own food, Padalka said, according to the report.
"They also recommend us to only use national toilets," he was quoted as saying.