She must have been given an earful by another foreigner, so now she keeps the racket to Taiwanese only.
A few days ago there was a report of a very successful scam. This guy at foreign airports, like Bangkok or Osaka, approaches the Taiwanese passengers. He tells them his bag was stolen, can they lend him some money? He shows a plane ticket headed to Taiwan.
All Taiwanese interviewed said they would easily give him 4000 or 5000 NTD, as he is a fellow Taiwanese in trouble.
There are more than 20 reports of his victims this month alone.