1. People who say 'basically' before every sentence. No matter how complex or long winded what they say is.
2. People who get genuinely pissed off because I'm reading their FREE paper over their shoulder on the tube.
3. Scottish people who think having a Scottish accent makes them funny. It doesn't.
4. The use of the word 'chav' when what's really meant is 'working class'. Socially acceptable snobbery.
5. People who speak in cliches and end up not saying what they mean.