Obvious has a name. It is.. Legolas. I couldn't contain myself this time when he said 'A diversion!'. I snort/giggled. It's like his only function is to be around for those people who just don't get things.
Aragorn: Keep his eye trained somewhere else. Legolas (to camera): A diversion! Orcs! Uruk-hai! Shadow! Red sun rising! Crebain from Dunland! You're late and you need a bath!