"It is not just villains. Crime victims can be staggeringly daft, too. When I worked in the magistrates’ courts we had two youths up for impersonating police officers. A resident had complained about the drunken row they were making and they barged into his house saying they would search it. One of them was 16, the leader was 18 and had one leg shorter than the other. Both were drunk and dressed in dirty jeans and T-shirts. Oddly, it was only when they dropped a vase that the householder got suspicious. But then he was a university lecturer."
An article from the Times recommending legal humour books.