MAWM ON THE EDGE, ALERT! Seriously, Jamie Lynn has a six-year-old so she's clearly dealt with worse; why else would an extremely large knife be her first port of call when trying to diffuse a random altercation in a Pita Pit (presumably it's like Subway, but with pita instead of subs).

For those requiring a back story before they enjoy seeing Britney Spears' little sister unleash her inner Mouseketeer (see what we did there?!?!), one of Jamie Lynn's friends found herself in the middle of some fisticuffs, and that's why the child star wound up throwing herself and a HUGE KNIFE into the equation. And it looked like she was enjoying it a bit. Also, the 'knife' looks more like one of those spatula thingies used to smear butter on your sandwich bread of choice...

This TMZ video can tell you the rest. Kudos to the fella behind the counter in the beanie hat who's more concerned with cleaning the counters/conversing on the phone (presumably to the police, one can only assume) than putting himself in the line of fire. Then again, he does manage to stop Jamie Lynn from leaving the kitchen with the 'knife'/spatula and therefore unleashing a brim load of WHOOPASS on everyone involved.

And you thought a bald Britney brandishing a brolly was scary...