pop will eat itself

I just thought I'd start a thread for any sample questions that haven't been answered elsewhere on the interwebs, mainly as there's been one that's been bugging me for ages.

So, does anyone know where the break that's used on 1000xNo! (and later in the demo of Urban Futuristic, and then again on BRA's Bentley's Gonna Sort You Out, and yet again on Seek & Destroy) is from? I haven't seen anything as to where it's from anywhere.

I asked Crabbi about this mystery sample when I saw PWEI, but I was pretty drunk and it went along the lines of "What's that beat that's in Seek & Destroy and errrm erm that other song on CFS....you know? It's like *buh, dis, buh, dis, buh dis*?!"

Needless to say he had no idea what I was on about

Awesome story.
I suppose it's also possible, from what I've learned from some other bands, that they sampled it a very long time ago and nobody remembers from what.