Cats will follow like you were the pied piper in Aoshima, Japan.
A colony of cats came to this little island in Japan to help humans control the rodent population and decided to create a huge colony there. For every one person living on Aoshima Island, there are 36 felines purring around.
WTF... the way it is been said, sounds like every place in Brazil you gonna cross with this ... be specific, probaly only in Amazonia would be better to say...
Agrasively harassing folks in packs, stealing, etc.
Can't say their origin though without getting blamed for being a racist...
Canadians?