West of Bruma I always find two Imperial Legionaires fighting to the death (usually only once per new game) and they are always yelling at each other. Such things as "FOR THE EMPIRE!".
And it makes me wonder, if they are both fighting for the empire, why are they killing each other.
They were helpful once though. During a Dark Brotherhood mission I failed to kill my mark, and I was chasing her down around that region when I came across the two yet again. One died as soon as I got there, and I figured I was forgeted since the other was clearly watching me shoot arrows at this old woman. Not the case. He chased her down with me, until we got to a cave where she entered it to hide. We both waited outside for her to leave, bows raised and ready pointing at the door, and we owned her. 
That exact thing happened to me twice, lol. After they had shot around 20 arrows into each other, and one of them died, the other ran off. I followed him for a minute, were he found his prize: a deer. He shot it, ran up to it, crouched beside it, and rubbed it... It was the strangest thing I have ever seen. Man rubbing deer... D: