I am apparently in a pretty intelligent place (that and I don't talk to people much) but the dumbest thing I have heard (besides a few double bluff pieces of bullshit I have had to come up with to make people think I am a script kiddie when something gets out of hand) was an English class when someone was asked what 9/11 (or 11/9 for me) was and they replied wasn't it a bombing or something. I then laughed and my teacher called my a sociopath. At the time I felt pretty suicidal and contemplated it for the next 2 hrs.