Yes, I myself have bad attitude and I know several of my friends that have bad attitude. It was like getting stung by a bee I did not like the way they were treating me and I was talking so calmly to them and they were still being mean even though I didn't even do anything to them to hurt them. Everyday I would say hi to them and they would disregard it :(
Well from that point on I just stopped hanging around them because hanging around mean people just isn't worth my time anymore to be frank.
I hope this answers all of your questions!
Voldemort trying to get the stone, but Harry stopping him.
