Derping DPS stories

Tanks and Healers have a thread for this, so lets add-to. Post your stories of you (of if its just too good to leave out, someone else) derping in your role as DPS.

Took me longer than it should have to figure out the Umbral-Astral synergy for THM. Particularly reading it for Fire and Blizzard and then just skimming the other two; IE adds effect OR removes opposite compared to the add effect AND removes opposite of the 3's. Luckily I hadn't ruined any parties yet, just found myself struggling with enemies I should have been flattening.

On one of the THM quests where you sleep the enemies and run past to get to the jar you're supposed to smash, I thought sleep could only be on one target at a time. Yep, felt like an idiot after that.