I was feared instead of taunted by shen?

Instead of running towards and attacking shen after he taunted me I ended up running to where he started the taunt (Which was right into twitch.) and just standing there. (Dying here actually cost me the game so it was even more annoying than it would have been otherwise but still should be fixed if possible. xD) This is the only time this has ever happened to me, at least that I've noticed so I have no clue how I would go about recreating it, just thought I should post it here in case anyone else has had this happen. ^^