It is vitally important to remain calm in combat.

Otherwise you could end up excitedly throwing the dice anywhere.

Transcript

Yoda: Hmm. Got angry I did. Calm down, I must. Avoid passion, I must.
Palpatine: It really is quite irritating that the Jedi were unwilling to defend Naboo in its time of need; I suppose that's what treachery does.
Yoda: Release this anger, I do. In your general direction!
[SFX]: Shove!
[SFX]: Whooooooossshh!
[SFX]: Krunch! {Palpatine hits wall}
Palpatine: My, you are quite the violent little muppet.
Yoda: I know you're just trying to make me angry. I'm going to stay calm.
[SFX]: whooom {Yoda turns on his laser sword}
Yoda: You won't like me when I'm calm.
[SFX]: whooom {Palpatine turns on his laser sword}
Palpatine: I see.
{they start sword fighting}
[SFX]: Whoom!
[SFX]: Whoom!
[SFX]: Whoom!
{Yoda is jumping around all over the place}
[SFX]: Whoom!
[SFX]: Whoom!
[SFX]: Whoom!
Palpatine: This is calm?
[SFX]: Whoom!
[SFX]: Whoom!
[SFX]: Whoom!
Yoda: I can be calm and excited at the same time!