I dunno... do a Brittish accent saying soething "Hello, you've reached the offices of <whatever incorporated>, please wait while your call is being assigned to one of our available operators" >>15-20 seconds of elevator music>> You in a middle-eastern accent, really loud, prefferably firing some big-ass machine gun in some game with the volume cranked up going like "Hello, this is Taliban! <confused reply> Oh, yes mrs <stupid old shrivelled cunt>, we can suicide bomb your next door neighbour's house tomorrow. We just need the address and one of our idiots... err... temporary employees will take care of it... just a moment... >> hey, Ahmed, you capitalistic pig, is that dynamite jacket ready yet? .. back to her: don't worry, my assistant tells me we'll be on time" or some other bullshit
This should freak her out a bit...