Oh yeah misclicks.
Lately I've been committing the stupidest mistakes related to them. Some time ago I had a PQI in Labyrinth and for fun was worshipping EM. I planned to join in Dracul later so I was very careful about my bloodpools and only petrified zombies and plants. Then once I misclicked my IMAWALL and blocked a path... the path to my bosses with about 1/3 of the blackspace left.
With no wallbreaking tools I had to use Rex to knock me into the sealed area
For a very long time retaliate fb didn't cause me any problems, because I always check the monsters' stats and abilities.
Sometimes that's not enough:
It was my 1st gorgon run there, and had such a great time. Ironically I even had CYDSTEPP. So what happened? That boss was slowed, so his retaliate fb wasn't shown. Seeing his weak stats I brawled him popping my DP, was about to fireball it a little before the regenfight, then I got trolled
I really wish retaliate fb and all the like abilities didn't disappeared when slowed, they should remain visible, maybe crossed or with a bracket next to them: (cancelled).