You can file this next story under the “What were you thinking” category.

NBA rookies and former Kansas teammates Mario Chalmers and Darrell Arthur were tossed out of the NBA’s rookie transition program after they were caught with marijuana and women in their hotel room.

Having women in the room is one thing, but marijuana during a rookie program that is spending half its time preaching the league’s drug policy is another.

According to sources, both players will be fined $20,000 apiece and could start the 2008 NBA season on the suspended list.

Way to make a first impression in the NBA.

If Chalmers is getting into trouble in Rye Brook, N.Y., wait until he gets to Miami with fellow rookie Michael Beasley.