the only thing "heavy" about this is the brutally heavy onslaught to your brain's sense of decency it is. trust me, if you've never heard of longmont potion castle aka LPC, you are simply not prepared for this level of mind-fuckery.
most people's ideas of what prank phone calls sound like are probably pretty skewed by insolent garbage like the jerky boys or crank yankers. if those two examples are the only thing that come to mind aside from maybe pulling a couple yourself, than its time to pony up and completely abandon any ideas you had, as this is about to decimate them and render them totally null and void.
started sometime in the late eighties by an anonymous genius somewhere in longmont, colorado (a suburb of denver), the castle has gurgled forth a massive collection of mind-melting phone fun that spans over many cd's, tapes, 7"s and even a 7 cd box set with a dvd (and a fridge magnet). most calls are made to local businesses, usually requesting hilarious unknowns like "aqua lamb" or "eel bowl" or "leprechaun julius". some calls are weirded out even further by tape loops, delays, ear-splitting feedback and barely audible samples. all calls are solid gold. almost all releases also feature a "metal interlude" or two as well.
this was the first LPC release i heard and it has forever shaped and molded my sense of humor into something more...fucked up.