Ziva and DiNozzo are playing "Identify the Reference". DiNozzo says, "Hell, the fall will kill you"... Ziva responds with "Butch Cassidy and the Sunrise Kid"
Gibbs walks into the main room, and says "Patterns." DiNozzo mishears him, and says, "George C. Scott, Patton, won 7 Acadamy Awards including...", till Gibbs cuts him off
The whole episode is a trove of cinematic references, one of those being a spoof of the exchange between Hubert Hawkins and Ravenhurst " Get it? Got it. Good."