People can be. These people remind me of people in Texas who do this exact same thing-stand outside looking for the damn tornado..... I have no idea what TU stands for or where that was taken. They're like...no i don't see anything....laughing....well its really calm now....welll no shit one's about to probably land on your head!
Me- I'd be taking cover- I don't like the sound of a damn siren-its spooky.... you'd think that people would be more intelligent than this. A siren does not mean "go outside and look for a twister!" *ugh*