People claiming to have 'flu' when its really just a nasty Cold is one of my pet-hates, as someone who was been hit with it twice in the past. When you get the flu good and proper it will fucking completely wipe you out. As my Doctor says, rather smart arseingly... if someone phones up claiming they have the flu and need an appointmemt urgently, he asks if they're able to come in immediately. If they say yes; they don't have flu.