Dwight Howard tried to tamper with the basketball before a second Paul Millsap free throw, but Paul wasn't allowing it.
As Paul Millsap was getting ready to shoot his second free throw in the first quarter in the Atlanta Hawks game against the Houston Rockets, he noticed a foreign substance on the ball, and called for the referee's attention.
It turns out, just as Dwight Howard checked into the game and got lined up on the lane, he requested to see the ball from the referee, where you can see him rub his hands all over the ball.