Aragorn's Fellowship Of The Ring companion and a hugefan of Lego™ bricks.
If Lego-las had brought large quantities of his favorite building-block toys with him on the journey to Mordor, perhaps he and the others in his party could have constructed whateverwalls and other structures they would have needed to foil their enemies and deliver The Ring to Mount Doom a lot more easily/peaceably.
A example of a situation it may be used is.
A Bully is Calling you names and generally harassing you in a shop and shop clerk comes and asks if everything is all right and the bully say nothing is wrong at all. Then you say "Don't act all prinney