I like to think I am a somewhat moderate tank. I've never really raided as one, being a pve/pvp healer my entire wow career, but I would offtank on a dk or whatever in alt runs and would do just fine. Ever since I started my new account, I have been leveling a Prot Pally. Its fun, easy (love soloing group quests better and faster than a dk in wrath), and all in all a good class to learn to tank with.
I am currently level 74 and was running DTK. All was going well when all of the sudden, out of nowhere, the healer rages in all caps "DUDE WTF STOP MAKING ME WAIST MY MANA" (word for word, spelling and everything). Being a healer, I have grid set up just the way I like it, so I see all incoming heals and for how much. So I will always WoG if I am below about ~50%, ~65% with no inc heals or a heal that wont bring me to full, and anything above I will just SotR. Apparently he didn't like that.
So my question is Does this happen often later on, or did I just get a pissy child that run? I know self healing is insanely high at lower levels and evens out later on, esp at 85, but still.
tl/dr: Self healing caused the healer to overheal, does this happen often later on?