What's up with their mouths?

Lembit Opik

Douglas Carswell

There was another guy with the same sort of affliction on the Tory benches who asked a question recently at PMQs and everyone commented on it on Guido's Live Chat.

Is it something about the House of Commons?

Just saying...

UPDATE: Seems Lembit broke his jaw in a Paragliding accident. Still wondering if the same happened to the others or if there's something in the water at Westminster.