Which is why we’re going hell-for-leather for Sarah Teather. When the 39-year-old Lib Dem MP for Brent Central announced that she’d be quitting at the next general election because she couldn’t toe the party line a minute longer, we waved our yellow rosettes in furious agreement. How dare Nick Clegg make our favourite fresh-faced, apple-cheeked politician ‘utterly desolate’ and ‘catastrophically depressed’ with his thoughtless policies on immigration? And who does Vince Cable think he is, accusing her of overreacting? As far as we’re concerned, if you storm into Westminster when you’re still in your twenties, rail against tuition fees in a never more aptly named maiden speech and go ape over Guantanamo, you can spend your life ‘overreacting’, thanks, Vince.