i've only got one PEOPLE WHO in this category at the moment, but there must be more:

PEOPLE WHO don't know how to stop their phone making a sound every time they key in a letter on a text message, resulting in everyone else in the carriage being treated to what sounds like an 6 year old boy messing up his bontempi keyboard rendition of "merrily we roll along" for the umpeenth fucking time.

PEOPLE WHO