Responsible
This one is set during the horcrux hunt in Harry Potter and the Deathly Hallows. Harry and Hermione have been to and back from hell aka Godric's Hollow, only Harry's wand is undamaged! Both regret their decision of going there as it turned out to be just like the MOM, in fact, it turned out to be even more sinister as at the MOM they had at least got the locket-horcrux, which by the way, wasn't saying much as they had found no means of destroying it! Yet!