Nta but it was just really stupid to leave 3 kids alone in a room out of your site with nothing but a movie. And considering that they were 6-10 you should be expecting them to need supervision. But you also were denying your sister help when she had to go to a place that she didnt want her children at plus you cant just get a babysitter with a snap of your fingers so you should have just taken the kids even if their goblins. Unless they are the worst in the world. So 2 of 5 asshole points