that was fvcking awesome!!! At first i thought the band was Modey Lemon, judging by the lack of recording quality, the fact its a 2 piece, and their overall random uncontrollable behavior. That and I've seen them do that kind of sh*t before.
Kinda reminds me of some of the things that would go down during a Black Flag show.
When I used to play a lot there was a guitarist in another band who got tired of guys at Frat shows getting out of hand so he began purposely cutting his guitar strings just short enough so that they stuck out of his tuners like spikes.
When some douchbag would get out of line and start screwing with them he'd give them a warning over the PA. If that didn't stop the guy, he would take his headstock and just rake it across the guy's face or head.
Whoever was messing with them would usually stop then...