I know it seems harmless, but when you (junglers) XP tax a lane for EVEN one minion..
.. you are putting your laner at a massive disadvantage.
The XP in mid and top (idk about botlane because its already shared) is made so that you get JUST enough XP to hit level 5 off of one of the waves (idk which it is but its like the 7th or 8th wave.)
If you tax even so much as ONE minion's XP, your laner will be behind a level for the rest of the lane and they are at a massive disadvantage against their laner and will not be able to fight them ever.
Just thought that the junglers who think that it's ok to XP tax a wave for no reason should know this.