10. (TOS) When the Enterprise crew beams down to the planet to fight the alien and the always red-shirted crew member (NHL Season) gets sacrificed.
8.TOS When McCoy (Fehr) starts calling Spock(Bettman) a pointy-eared-green-blooded-hobgoblin and wondering if he has compassion/mercy or any feelings at all.
7.TNG - When Picard (Fehr) is stuck on the foreign planet and the alien (Bettman) only communicates in allegories and no one can figure out what he is saying.
6.Enterprise -Last Episode of Season 4. Basically everyone including the fans start to realize their is nothing they can do to keep the next season from being cancelled.

4.TNG - When they meet up with the Borg and realize that "Resistance is Futile" yet they refuse to give in

2. TNG -When Data asks Geordi why humans are so greedy, stubborn and messed up and all Geordi can come up with is "Um you got me !?!?"
1.Wrath of Kahn: When Kirk realizes Kahn has left him with no hope underneath the planet: