Chris Brown doesn't like when other fellas mess with his exes.
Case in point, Breezy's blow up at Tyson Beckford over Karrueche Tran.
Chris Brown's most famous former, Rihanna, is said to be a dating Travis Scott.
The tabloids have hinted that Brown doesn't have a lot of respect for Scott and RiRi's relationship.
In this Instagram comment -- which Brown promptly deleted -- the R&B star suggests La Flame is for the toilet.
Maybe it's an inside joke that we don't understand. Or maybe Brown just can't help but keep haunting his exes on social media.