When Paul Pierce fell to the floor in front of Miami's bench with just 40 seconds left in Game 1, Ray Allen was at the scorer's table waiting to enter the game.

A few seconds later, craziness ensued with Kevin Garnett ultimately getting suspended. While Glen Davis and Garnett were in the middle of the pushing and shoving, along with a slew of Heat players, Allen wasn't quite sure what he was legally able to do. So he didn't move.

"If I stepped on the court, would be an interpretation of whether I left the bench or not?" Allen asked before Game 2. "Am I part of the bench or in the game? So I stayed still."

Allen said rules evolve every year in the NBA, not only the leaving-the-bench rule during altercations but also what players can get away with defensively. He said when he first came into the league 13 years ago, the game was much more physical. Included was an unwritten rule on most teams to never allow free layups.

"I remember guarding Reggie Miller and he used to throw my hands out of the way," said Allen, "and my coach would say `you have to guard him.' It's changed a lot."