He does the same thing on "Drive", especially when it sounds like he's chewing the microphone.
And on Faster, during the line 'when there's nowhere left to run.'
Older Than They Think: This Letter, an acoustic song recorded during the Hours sessions, is commonly held to show how they went softer for that album. In 2013, it was revealed that they recorded an earlier version during the sessions for their first EP Between Order And Model. At this time the song was called "Grand Central Station". They didn't release it originally because it wasn't representative of their sound. It was a slap in the face to people who thought the band was just heavy during that EP's period.