I was just reading about difficult calls made during elections and it reminded me of something so embarrassing it made me blush despite the fact that I was on the phone and nobody could see me. We don't make random phone calls, we are phoning specific people so you have to make sure that's who you've got on the end of the line.
Anyway I was looking for Jean Grant (I've changed the name obv) one night and phoned the number in Pollok. "Oh hello Mr Grant" I said when the phone was answered "can I speak to Mrs Grant please?". Can you guess the reply? "This IS Mrs Grant"! Earth swallow me up! It's also happened the other way round too. No wonder I don't like phone canvassing.