Agree that the punishment by the NBA is pretty light, although keep in mind that Arenas will also be disciplined separately in criminal court. I think he pleaded Guilty and is awaiting sentencing.

Just to play devil's advocate, the NBA punishment is a question of supply and demand. If you're a truck driver or even an attorney, you can be replaced easier than a premier NBA player. There are what, tens of thousands of lawyers in this country? So if an attorney openly and threateningly brandishes a weapon at his firm, he/she is done. See ya! Now let's switch industries: How many basketball athletes in the world have the skill level of a Gilbert Arenas? Several dozen perhaps. 40? 50 tops. Low supply + high demand = higher tolerance for unacceptable behaviour in the workplace.