Everything I need to know I learned from LOTR

[Morai]

11) Listen to the elves. Usually they know what they're doing. Yes, Isildur, that means you too.

How true that is. Kinda puts a new twist on the phrase: "Listen to your elders."
Anyway here's a few more:

1) When screaming Nazgul come riding towards you, they probably mean to kill you, not to play a heavy metal concert.

2) The Phrase "Give me a hand" takes on a whole new meaning when your talking to the Eye of Sauron.

3) Friends are capable of attempting to stab you in the back, especially when they have the One Ring.