You said the magic words, "I want to cancel my (TV/Internet/Phone, etc.). Nothing fets their attention like the word cancel. Always at least threaten to cancel before quitting a service.
Goldman Sachs, no question.
What I find entertaining is that while Newton was spending most of his time working on on alchemy and theology, he still had enough spare time to write/invent/discover the Philosophiæ Naturalis Principia Mathematica, Newtonian mechanics, universal gravitation, infinitesimal calculus, optics, binomial series and Newton's method.
How about we repeat the exercise daily at randomly chosen airports around the globe?
Screeners who miss the contraband (or allow a passenger to exit through an entry way) would be stripped of badges and ids, fired on the spot and escorted outside the airport.
Passengers originating at or transiting through airports with a poor screening record would be denied entry to the US.