In most of those videos from the second batch, people seem to not take any of what's going on seriously (with the exception of they guy with the foam from the mall). I really hate it when people act blase about severe weather when trying to look cool on youtube. Or when they are so extemely stupid that they can't appreciate the seriousness of the situation. I also hate it when people call the sirens alerting them to danger annoying.
It's getting pathetic that so many people think "grab a video camera" rather than "get in the basement" when a tornado warning is issued. Even if there were cool sirens in those videos.