Original Teen Mom™ and Britney's kid sister Jamie Lynn Spears has seen some shit in her 23 years, which is perhaps why she was able to allegedly shut down a violent brawl at a sandwich shop last weekend by pulling a huge knife.

TMZ reports that after going out last weekend, Jamie Lynn and her friend stopped at Pita Pit in Hammond, Louisiana for a late night bite. For those unfamiliar, Pita Pit is like Subway for pitas. Pitaway. Anyway, someone apparently clocked Jamie Lynn's friend over the head with a broken bottle while they were there. Per TMZ:

Cops tell us Jamie's friend got clocked with a bottle. That's when Jamie went all "Saving Private Ryan" ... dragging her friend to safety. Our Spears sources say Jamie pulled her behind the sandwich counter—then grabbed a long serrated bread knife and started waving it around to stop the fight.

We're told that did the job. Police showed up, but Jamie's friend didn't want to press charges ... so no one got arrested.

Jamie Lynn! Just hours before the fight, she posted a photo of herself wearing an All That jacket to Instagram #nofilter:

Jamie Lynn hasn't publicly commented on her alleged heroism.

[Photo via Getty]