MIAMI -- Maybe it was forward Boris Diaw's behind-the-back pass that led to a dunk by center Tiago Splitter.
Or maybe it was guard Manu Ginobili's surprising blocked shot on Miami Heat forward LeBron James.
Or perhaps it was forward Kawhi Leonard's two-handed, all-in-one-motion rebound/dunk.
Actually, they were all good examples of another surreal first half at AmericanAirlines Arena that helped result in the San Antonio Spurs' 107-86 win over the Heat on Thursday night.
The victory gave the Spurs a 3-1 lead in the best-of-seven NBA Finals, moving San Antonio within one win of its fifth league championship since 1999.
It also put the Heat's chances of a three-peat in dire jeopardy because no team ever came back from a 3-1 deficit in the NBA Finals.
The fact that the Spurs took both games in Miami this week by a combined total of 40 points shocked everyone -- including San Antonio's players.
"Coming to Miami, I was expecting to get one of these two games," Ginobili said. "I always believed in our team's chances. But two like this? I never expected it."
San Antonio's two wins in three days followed nearly identical scripts -- the Spurs essentially put both games away by halftime. They led by 21 at intermission on Tuesday and by 19 on Thursday.
Breaking it down even further, the Spurs have outscored the Heat by a combined total of 38 points in the first quarters of the four games.
"We have to get off to a better start the next game," Heat point guard Mario Chalmers said. "That's the most important thing."
Of course, Chalmers represents one of the Heat's biggest problems. He averaged 9.8 points during the regular season, but he is producing just 3.5 points on 27 percent shooting during the Finals.
Chalmers, 28, is a free agent after this season, and he appears to be playing his way off the Heat because of the way that he and backup Norris Cole are getting dominated by Spurs starter Tony Parker and reserve Patty Mills.
Parker and Mills are a combined plus-53 in this series so far.
Chambers and Cole are a combined minus-37.
The Spurs' point guards also have outscored their Heat counterparts 108-28 in the series.
Given that, perhaps it comes as no surprise that the Heat players were booed at home Thursday.
"Life is harsh," Heat forward Chris Bosh said. "You have to get over those things quickly. Maybe (the fans) are right. Maybe we deserve (the boos) right now."
The Spurs are a big part of why the catcalls are coming down on a tough-minded Heat team that is playing in the NBA Finals for a fourth consecutive year.
On Thursday, San Antonio kept the Heat from penetrating, winning the points-in-the-paint battle 46-30. San Antonio outrebounded Miami 44-27, including 12-6 on the offensive end.
The Spurs also held Miami to 45.1 percent shooting. That is important because the Heat led the NBA in field-goal percentage during the regular season (.501) and again in the postseason (.496).
In addition, the Spurs avoided the Heat's trademark defensive traps by using outstanding ball movement.
San Antonio's goal, Ginobili said, was to get rid of the ball in three seconds or less.
"When we move the ball, we're going to get open looks," Spurs guard Danny Green said. "Defenses have to scramble, and there's a good chance they're going to make a mistake. Someone's going to be open."
Leonard was open a lot lately -- he scored a combined 49 points in the past two games after managing just 18 in the first pair.