Am i loosing my mind?

[meggalo]

Was playing on my hunter yesterday.
I went up to kill me some mob on the isle for rep,and as i went up i seen this alliance warrior killing on his mount a couple mobs then coolly rode away.
Is there a new thing in game that makes you do that? (i tried asking someone and all i got you have a 90 and you don't know? and no you can't) So what did i see lol?
Ps this game is making me madder by the day lol.