answer:I think it’s because people associate it with the not-so-mentally-stable people who think the rapture is coming, or the the people who think aliens are coming, or the people who generally think some highly unlikely event will happen. It also depends on where you live. If I’m doing this is central NJ, where there’s not much extreme weather to worry about, people will think I’m strange. If I live in Tornado alley, it’s understandable.