There's cool and then there's Jack Nicholson cool. Having a cigarette inside the Forum, during G3 of the 1984 NBA Finals between Lakers and Celtics.
Reggie Bullock with the game-sealing steal to secure the win for the Knicks
Bruno Caboclo knocks the game-tying free throw off the rim to secure the upset Victory
Houston's offensive possessions in Game 2 with Harden on the bench