The Texans came home in Week 3 to take on the Washington Redskins.  In the first quarter, Houston got off to a good start, as TE Mark Bruener caught a 2-yard TD pass.  However, the Redskins would tie the game up on a 9-yard run by RB Ladell Betts.  From there, things went downhill in the second quarter, as WR Antwaan Randle El caught a 23-yard TD pass and RB Clinton Portis ran 30 yards for a touchdown.  In the third quarter, Washington continued to pound Houston, with Portis getting a 1-yard TD run.  In the fourth quarter, the Redskins would get one more scoring strike as kicker John Hall kicked a 46-yard field goal.  The Texans would get another touchdown, as QB David Carr threw a 2-yard pass to TE Owen Daniels and RB Ron Dayne would run it in for the 2-point conversion.  Unfortunately, Houston would fall to 0-3, losing 31-15.. How many points did Houston lose by?