You know those telephone calls that are "recorded for training or monitoring purposes"? From time to time, my work involves reading through transcripts of them. None, however, is as good as this one, from the recording of an imprisoned drug dealer:
‘Listen, you little idiot,’ said the mastermind, his patience at its end. ‘These phone calls are recorded, so we speak in code. A “car” is the code word for a fucking kilo of heroin. Didn’t anybody tell you that?’
‘Ah, yes,’ said the Little Idiot. ‘I remember now. Sorry.’
The whole article is worth a read: I like the CCTV story and the Kinder Egg detail too.