I know that this all comes down to evidence, but the outcomes of the following two stories from the BBC website have annoyed me...
http://www.bbc.co.uk/news/uk-england-hampshire-18536940^ This guy gets three years for saying something stupid on Facebook.
http://www.bbc.co.uk/news/uk-england-essex-18539160^ Nothing happens to the owner of a dog who attacks a five-year-old girl.