DALLAS -- One of the first things many people noticed about Caron Butler after his arrival to the Dallas Mavericks is that the guard likes to chew straws during games.

The NBA obviously took notice as well.

NBA executive vice president Stu Jackson phoned Butler on Tuesday and told him to leave his straws at home. Butler did not play against the Los Angeles Lakers due to a reaction to medication, so he was unavailable for comment.

But the Mavs confirmed that the league is serious about outlawing straw chewing.