CAMPINAS, Brazil -- A German man reportedly dumped by a Brazilian woman he met on the Internet has been living in an airport for 13 days and isn't saying when he will leave. The man, identified by authorities as Heinz Muller, is out of money, according to airport workers, some of whom bring him meals from the food court. The 46-year-old former pilot passes the time wandering the airport in Campinas, an industrial city about an hour's drive from Sao Paulo, or using his laptop perched on a luggage cart. Occasionally he speaks to workers and passengers in basic Portuguese mixed with some Spanish. Muller arrived in Rio de Janeiro on Oct. 2 and can stay as long as he breaks no laws, said a spokesman for Brazil's civil aviation authority, who spoke on condition of anonymity in keeping with policy. Most European tourists are allowed to stay three months in Brazil, presumably giving Muller until early January before he would face