I encountered an issue relating to the Warlock's Felhunter pet. If you have a mage or a priest in party/raid and they cast their respective buffs (Arcane Intellect, Divine Spirit) the felhunter will continuously try to cast Fel Intelligence. Fel Intelligence won't overwrite either buff, but the problem is that the felhunter never stops trying to cast fel intelligence. It makes a sound on cast, and hearing it several times per second until combat is over is distracting to me. It also floods the combat log with entries of the felhunter trying to cast fel intelligence. Very minor issue, but I thought to mention it.