Don't forget:
- picking that enemy player that just happened to ride through your field of view even though he's currently 200 yards away from you and riding away on his mount (rare that they haven't just run up to gank me by that point but it still happens every time some enemy player comes anywhere near me).
It's almost like Blizzard wants to force you into PVP regardless of whether that was your intention at that point in time or not. Kind of like aura's that put you into combat without anyone doing anything. Specifically I see this with DK's PVP Talent Decomposing Aura.