When you're about to gank a lane, but your ally dies before you get there

This......is a bit too accurate, that time when you decide a early top gank is in order so you start moving from top jungle towards the lane, just as you get the edge of the entrance and when you move your camera to look properly you suddenly hear the "an ally has been slain" and see that enemy top 2 is levels up on you with 80% health in a fat minion wave.

Hello and goodbye!