Twitter trolls just never learn do they.
This latest mess started when Scottish Member of Parliament Natalie McGarry apologised for using a photo of Rowling's out of context.
Scottish writer Kevin Williamson then got involved and wrote this little beauty...
"Why apologise to her. She uses her obscene wealth & lawyer droids to threaten & bully. Tell the radge to bolt."
Eep. That escalated quickly.
But JK Rowling, being the sass queen she is, replied with this epic tweet:
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