I love getting most of the way through a poll and saying, "Sorry, your five minutes are up" and hanging up.
several years ago I got probably 5 calls a night from different telemarketers..one day a girl called and wanted me (and my now ex-wife) to go look at some land in the N. Georgia mountains..I got excited, she got excited (thinking she FINALLY had one on the hook), I got more excited, she got more excited..then in order to qualify, I had to answer a few questions..I said ok..so it was the typical address, phone (I answered these as she already had the info)..then she asked about family income..I told her I was unemployed but my wife worked part-time, when can I come look at the land..SHE hung up on me and within 30 days ALL calls stopped (since telemarketers sell the info to each other, mine hit as "unemployed")..they haven't restarted since..