God meant for opossums to be pets and just wanted humans to do some selective breeding to increase their lifespans.
Humans decided their fur was too soft and they looked too much like rats. Obviously the only course of action was to kill them.
I love humans /s
No, she's just a bully and an asshole. If you sister can't kick her ass, kick her ass yourself and help your sister find better friends. Your sister probably needs the support, otherwise she probably wouldn't be """friends""" with people like that.