Run that past me again?

You know, people get completely psychotic and bent out of shape over telemarketers, survey takers, what have you. So can somebody please explain to me why most of these same people will piss themselves laughing over phone prank "humor"?

Why is it somebody calling to sell you something that might actually be useful is cause for homicide, and some juvenile moron doing really bad voices is high comedy?

I mean, it's bad enough when you have pissants like The Jerky Boys around in purely audio form (does anybody remember the Jerky Boys movie? I didn't think so), but now Comedy Central has this show called Krank Yankers that is phone pranks set to puppetry! What the fuck?