While swearing at my bank's automated phone attention system, I was thinking that –taking advantage in the fact they already usually say that "the call will be recorded to improve service quality"– call cener operators/programmers should record all user activity and, just for laughs, play back the grumbles angry users shout at the system. Of course, at random intervals, on loudspeakers, over the crowded call centers.
Oh, they do it already?